Uplink channel configuration method, uplink channel transmission method, network-side device, and terminal

ABSTRACT

This disclosure provides an uplink channel configuration method, an uplink channel transmission method, a network-side device, and a terminal. The uplink channel configuration method is applied to a network-side device and includes: sending indication information to a terminal, where the indication information is used to indicate an uplink channel related transmission parameter, the transmission parameter corresponds to N uplink channels and/or at least two target transmissions of a target uplink channel, and N is an integer greater than 1.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application is a continuation application of PCT Application No.PCT/CN2020/070075 filed on Jan. 2, 2020, which claims priority toChinese Patent Application No. 201910028852.4, filed in China on Jan.11, 2019, which are incorporated herein by reference in theirentireties.

TECHNICAL FIELD

Embodiments of this disclosure relate to the field of communicationstechnologies, and in particular, to an uplink channel configurationmethod, an uplink channel transmission method, a network-side device,and a terminal.

BACKGROUND

In a related art communications system, there are two types of uplinkchannels, physical uplink shared channel (PUSCH) and physical uplinkcontrol channel (PUCCH). PUCCH mainly carries uplink control information(UCI), for example, hybrid automatic repeat request (HARQ) feedbackinformation, channel quality feedback information, and schedulingrequest. PUSCH mainly carries uplink service data.

The related art communications system allows a network-side device toconfigure or indicate a transmission parameter for only one uplinkchannel. When a terminal needs transmission of a plurality of uplinkchannels, for example when the terminal is to transmit uplink channelsto a plurality of transmission and reception points (TRP), thenetwork-side device is required to signal a plurality of configurationsor indications, leading to high signaling overheads.

SUMMARY

Embodiments of this disclosure provide an uplink channel configurationmethod, an uplink channel transmission method, a network-side device,and a terminal.

According to a first aspect, an embodiment of this disclosure providesan uplink channel configuration method applied to a network-side device,where the method includes:

sending indication information to a terminal, where the indicationinformation is used to indicate an uplink channel related transmissionparameter, the transmission parameter corresponds to N uplink channelsand/or at least two target transmissions of a target uplink channel, andN is an integer greater than 1.

According to a second aspect, an embodiment of this disclosure providesan information transmission method, applied to a terminal, where themethod includes:

performing transmission of an uplink channel according to an uplinkchannel related transmission parameter, where the transmission parametercorresponds to N uplink channels and/or at least two targettransmissions of a target uplink channel, and N is an integer greaterthan 1.

According to a third aspect, an embodiment of this disclosure furtherprovides a network-side device, and the network-side device includes:

a sending module, configured to send indication information to aterminal, where the indication information is used to indicate an uplinkchannel related transmission parameter, the transmission parametercorresponds to N uplink channels and/or at least two targettransmissions of a target uplink channel, and N is an integer greaterthan 1.

According to a fourth aspect, an embodiment of this disclosure furtherprovides a terminal, where the terminal includes:

a transmission module, configured to perform transmission of an uplinkchannel according to an uplink channel related transmission parameter,where the transmission parameter corresponds to N uplink channels and/orat least two target transmissions of a target uplink channel, and N isan integer greater than 1.

According to a fifth aspect, an embodiment of this disclosure furtherprovides a network-side device, where the network-side device includes aprocessor, a memory, and a computer program stored in the memory andcapable of running on the processor. When the computer program isexecuted by the processor, the steps of the uplink channel configurationmethod described above are implemented.

According to a sixth aspect, an embodiment of this disclosure furtherprovides a terminal, where the terminal includes a processor, a memory,and a computer program stored in the memory and capable of running onthe processor. When the computer program is executed by the processor,the steps of the uplink channel configuration method described above areimplemented.

According to a seventh aspect, an embodiment of this disclosure furtherprovides a computer-readable storage medium. The computer-readablestorage medium stores a computer program, and when the computer programis executed by a processor, the steps of the uplink channelconfiguration method described above or the steps of the uplink channeltransmission method described above are implemented.

BRIEF DESCRIPTION OF DRAWINGS

To describe the technical solutions in the embodiments of thisdisclosure more clearly, the following briefly describes theaccompanying drawings required for describing the embodiments of thisdisclosure. Apparently, the accompanying drawings in the followingdescription show merely some embodiments of this disclosure, and personsof ordinary skill in the art may derive other drawings from theseaccompanying drawings.

FIG. 1 is a structural diagram of a network system to which anembodiment of this disclosure may be applied;

FIG. 2 is a flowchart of an uplink channel configuration methodaccording to an embodiment of this disclosure;

FIG. 3a is a first schematic diagram of a precoding information andnumber of layers signaling field according to an embodiment of thisdisclosure;

FIG. 3b is a second schematic diagram of a precoding information andnumber of layers signaling field according to an embodiment of thisdisclosure;

FIG. 3c is a third schematic diagram of a precoding information andnumber of layers signaling field according to an embodiment of thisdisclosure;

FIG. 4 is a flowchart of an uplink channel transmission method accordingto an embodiment of this disclosure;

FIG. 5 is a first structural diagram of a network-side device accordingto an embodiment of this disclosure;

FIG. 6 is a first structural diagram of a terminal according to anembodiment of this disclosure;

FIG. 7 is a second structural diagram of a network-side device accordingto an embodiment of this disclosure; and

FIG. 8 is a second structural diagram of a terminal according to anembodiment of this disclosure.

DESCRIPTION OF EMBODIMENTS

The following clearly describes the technical solutions in theembodiments of this disclosure with reference to the accompanyingdrawings in the embodiments of this disclosure. Apparently, thedescribed embodiments are some rather than all of the embodiments ofthis disclosure. All other embodiments obtained by persons of ordinaryskill in the art based on the embodiments of this disclosure shall fallwithin the protection scope of this disclosure.

The terms “first”, “second”, and the like in this application are usedto distinguish between similar objects instead of describing a specificorder or sequence. In addition, the terms “include”, “have”, and anyother variants thereof are intended to cover a non-exclusive inclusion.For example, a process, method, system, product, or device that includesa list of steps or units is not necessarily limited to those steps orunits that are expressly listed, but may include other steps or unitsthat are not expressly listed or are inherent to the process, method,product, or device. In addition, the use of “and/or” in this applicationrepresents presence of at least one of the connected objects. Forexample, A and/or B and/or C represents the following seven cases: Aalone, B alone, C alone, both A and B, both B and C, both A and C, andall of A, B, and C.

FIG. 1 is a structural diagram of a network system to which anembodiment of this disclosure may be applied. As shown in FIG. 1, thenetwork system includes a terminal 11 and a network-side device 12, andcommunication can be performed between the terminal 11 and thenetwork-side device 12.

In embodiments of this disclosure, the terminal 11 may also be referredto as user equipment (UE). In a specific implementation, the terminal 11may be a terminal-side device such as a mobile phone, a tablet computer(Tablet Personal Computer), a laptop computer, a personal digitalassistant (PDA), a mobile internet device (MID), a wearable device, oran in-vehicle device. It should be noted that the terminal 11 is notlimited to a specific type in the embodiments of this disclosure.

The network-side device 12 may be a base station, a TRP, or the like. Inthe embodiments of this disclosure, the TRP may be defined by at leastone of the following: a control resource set (CORESET) or a controlresource set group; an explicitly defined TRP; a transmissionconfiguration indication state (TCI State), a transmission configurationindication state list or a transmission configuration indication statepool (TCI State List/Pool); QCL information or QCL group information;spatial relation information or spatial relation group information; aphysical downlink shared channel (PDCCH) scrambling identifier or aPDCCH scrambling identifier group (PDCCH Scrambling ID or ID group); aphysical downlink shared channel (PDSCH) scrambling identifier or aPDSCH scrambling identifier group (PDSCH Scrambling ID or ID group); aPDCCH-Config information element (PDCCH-Config information element); anda PDSCH-Config information element (PDSCH-Config information element).

For ease of understanding, the following describes some content involvedin the embodiments of this disclosure.

1. Multi-Antenna

Standards for radio access technologies such as long term evolution(LTE)/LTE-advanced (LTE-A) are built based on technologies ofmultiple-input multiple-output (MIMO) and orthogonal frequency divisionmultiplexing (OFDM). The MIMO technology takes advantage of a spatialdegree of freedom brought by a multi-antenna system to improve a peakrate and system spectrum efficiency.

The dimensions of MIMO technology continue to expand during thedevelopment of standardization. In LTE Rel-8, up to 4 layers of MIMOtransmissions can be supported. In Rel-9 enhanced multi-user MIMO(MU-MIMO) technology, transmission mode (TM)-8 MU-MIMO transmission cansupport up to 4 downlink data layers. In Rel-10, the transmissioncapability of single-user MIMO (SU-MIMO) is extended to a maximum of 8data layers.

The industry is further promoting the MIMO technology to bethree-dimensional and large-scale. The third generation partnershipproject (3GPP) is conducting research and standardization works on newradio (NR) MIMO. It can be foreseen that in the future fifth generation(5G) mobile communications system, the massive MIMO technology with moreantenna ports will be introduced.

Massive MIMO technology uses a larger quantity of antenna arrays, andcan greatly improve band efficiency of the system and support access ofa larger quantity of users. Therefore, major research organizations allregard massive MIMO technology as one of the most promising physicallayer technologies in the next generation of mobile communicationsystems.

In the massive MIMO technology, if an all-digital array is used, amaximum spatial resolution and optimal MU-MIMO performance may beachieved, but this structure requires a large number ofanalog-to-digital (AD)/digital-to-analog (DA) converters and a largenumber of complete radio frequency-baseband processing channels. As aresult, both device costs and baseband processing complexity cause hugeburden.

To avoid the aforementioned implementation costs and device complexity,a digital-analog hybrid beamforming technology has been presented, thatis, based on related art digital domain beamforming, addition of afurther beamforming procedure for a radio frequency signal—analogbeamforming (or analog shaping)—at a front end adjacent to an antennasystem. The analog beamforming is capable of roughly matching transmitsignals with channels in a relatively simple manner. The number ofdimensions of the equivalent channel formed after the analog shaping issmaller than the actual number of antennas, so in the subsequentprocedures, the number of AD/DA converters, the number of digitalchannels and the corresponding baseband processing complexity may all beremarkably reduced. The residual interference of the analog shapedportion may be processed again in the digital domain to ensure thequality of MU-MIMO transmission. Compared with full digital shaping,hybrid digital-analog beamforming is a compromise between performanceand complexity. It has a high practical prospect in systems with largebandwidth in high frequency bands or large numbers of antennas.

2. High Frequency Bands

In the research of the next generation of communication systems afterthe fourth-generation (4G) communications technologies, an operatingfrequency band supported by a system has been raised to above 6 GHz, upto about 100 GHz. A high frequency band has relatively abundant idlefrequency resources, and may provide a greater throughput for datatransmission. 3GPP is conducting research and standardization works forhigh frequency bands in NR. A higher frequency signal has a shorterwavelength. Therefore, compared with a low frequency band, in a highfrequency band, more antenna array elements can be arranged on a panelof a same size, and beams can be with stronger directivity and narrowerlobes using a beamforming technology. Therefore, it is also one of thefuture trends to combine massive antennas with high-frequencycommunication.

3. Beam Measurement and Reporting

For analog beamforming technology, analog beams are transmitted at afull bandwidth. In addition, the analog beams can be transmitted only ina time-division multiplexing manner by an array element in eachpolarization direction on each high-frequency antenna array panel. Theshaping weights of analog beams are implemented by adjusting parametersof RF front-end devices such as a phase shifter.

In the related art, a polling manner is usually used for training ofanalog beamforming vectors, that is, the antenna element of eachpolarization direction of each antenna panel sends a training signal(that is, a candidate beamforming vector) sequentially at agreed timesin a time-division multiplexing manner. A terminal feeds back a beamreport after measurement, so that the network side can use the trainingsignal to implement analog beam emission for a next transmission.Content of the beam report usually includes reference signal resourceidentifiers used for several relatively optimal transmit beams and ameasured received power of each transmit beam. For example, thereference signal resource identifier may include a channel stateinformation reference signal resource indicator (CSI-RS ResourceIndicator, CRI) or a synchronization signal block resource indicator(SSB Resource Indicator, SSBRI). The received power may include layer 1reference signal received power (L1-RSRP).

4. PUCCH

The purposes of designing a PUCCH include:

-   -   satisfying different block error rate (BLER) targets, and        designing different Formats based on content of PUCCH        transmissions. The content of a PUCCH transmission may include        at least one of the following: an acknowledgement (ACK) or        negative acknowledgement (NACK), a scheduling request (SR), and        channel state information (CSI);    -   satisfying different latency requirements. For example, a Short        PUCCH allows for fast feedback and shorter latency, and may be        one symbol in its shortest form;    -   satisfying different coverage requirements. A PUCCH is 1 to 14        symbols in length, and can be transmitted repeatedly for        multiple times. For example, a Long PUCCH has a relatively large        coverage;    -   satisfying a multi-user multiplexing capability. It is possible        to implement transmission without multi-user multiplexing, with        multi-user multiplexing, or with strong multi-user multiplexing        by carrying a corresponding number of uplink control information        (UCI) Bits (number of bits); and    -   satisfying a relatively low Cubic Metric or a peak to average        power ratio (PAPR). A new computer generated sequence (CGS) is        introduced for pilot and UCI. Single carrier discrete Fourier        transform spread spectrum orthogonal frequency division        multiplexing (DFT-S-OFDM) based on discrete Fourier transform        (DFT) is used to guarantee coverage, and a multi-carrier        transmission design based on cyclic prefix OFDM (CP-OFDM) is        used for non coverage-limited PUCCHs.

A network-side device configures PUCCH related information for UEthrough radio resource control (RRC) signaling. An information element(IE) for configuring UE Specific PUCCH parameters per bandwidth part(BWP) is PUCCH-Config, which includes: PUCCH resource information, PUCCHFormat, PDSCH and its ACK/NACK timing information, Spatial Relationinformation of PUCCH, and the like. An IE for configuring Cell SpecificPUCCH parameters is PUCCH-ConfigCommon, which includes: PUCCH resourceinformation, group frequency hopping information, and the like.Furthermore, information related to path loss and power control of aPUCCH is also configured.

Spatial Relation information of a PUCCH characterizes a spatial relationbetween a Reference RS and the PUCCH, that is, uplink spatial parameterinformation used for transmitting the PUCCH. The Reference RS may be: anSSB, a CSI reference signal (CSI-RS) or a sounding reference signal(SRS). If a network-side device has configured a plurality of SpatialRelations through RRC signaling, the network-side device also needs touse a medium access control element (MAC CE) Command to select one ofthem.

5. PUSCH

PUSCH is a channel used to transmit uplink data and signaling. Anetwork-side device configures PUSCH related information through RRCsignaling. An IE for configuring UE Specific PUSCH parameters per BWP isPUSCH-Config, which includes: data scrambling information, precodinginformation, demodulation reference signal (DMRS) information, powercontrol information, frequency hopping information, resource allocationinformation, modulation and coding scheme (MCS) information, resourceblock group (RBG) information, and the like. An IE for configuring CellSpecific PUSCH parameters is PUSCH-ConfigCommon, which includes: groupfrequency hopping information, resource allocation information, and thelike. In addition, power control information of the PUSCH is alsoconfigured.

For Spatial Relation information of a PUSCH, when DCI carried on a PDCCHschedules the PUSCH, each SRI Codepoint of a sounding reference signalresource indicator field (SRI field) in the DCI indicates one SRI, andthe SRI is used to indicate a spatial relation of the PUSCH.

For a Codebook Based PUSCH, the signaling field “Precoding informationand number of layers” of the DCI is used to indicate information of aCodebook used for the PUSCH, including, for example, transmittedprecoding matrix indicator (TPMI) information, number of layersinformation (or known as rank indicator (RI) information), and the like.The network-side device determines Codebook information throughmeasuring an SRS transmitted by the UE. The UE may learn the informationof the Codebook for transmission of the PUSCH according to the signalingfield.

For a Non-codebook Based PUSCH, the signaling field “SRS resourceindicator” in the DCI is used to indicate precoding information of thePUSCH, that is, a precoding weight of the PUSCH is the same as that ofan SRS resource indicated by the signaling field.

In the embodiments of this disclosure, beam information, SpatialRelation information, Spatial Domain Transmission Filter information,Spatial Filter information, and quasi co-location (QCL) information havethe same meaning, all of which refer to beam information.

A related art communications system allows a network-side device toconfigure or indicate a transmission parameter, for example, precodinginformation, for only one uplink channel (for example, one PUSCH or onePUCCH).

This disclosure allows a network-side device to configure or indicate aplurality of uplink channels (for example, each channel transmitted to adifferent TRP), and/or different parts of a target uplink channel (forexample, each of repeated transmissions, transmissions before and afterfrequency hopping in a case of frequency hopping, or different parts ofa channel transmitted at different times), for example: precodinginformation, spatial relation information (beam), and the like.

The following describes the uplink channel configuration method in theembodiments of this disclosure.

FIG. 2 is a flowchart of an uplink channel configuration methodaccording to an embodiment of this disclosure. The uplink channelconfiguration method shown in FIG. 2 is applied to a network-sidedevice.

As shown in FIG. 2, the uplink channel configuration method in thisembodiment of this disclosure may include the following step.

Step 201: Send indication information to a terminal, where theindication information is used to indicate an uplink channel relatedtransmission parameter, the transmission parameter corresponds to Nuplink channels and/or at least two target transmissions of a targetuplink channel, and N is an integer greater than 1.

In this embodiment of this disclosure, in a case that the transmissionparameter corresponds to N uplink channels, the indication informationmay be used to simultaneously indicate a transmission parametercorresponding to N uplink channels.

Further, in the case that the transmission parameter corresponds to Nuplink channels, the N uplink channels correspond to M transmission andreception points TRPs, and M is an integer greater than 1. In practicalapplications, M may be less than or equal to N, which means that one TRPmay correspond to one or more uplink channels.

In a case that the transmission parameter corresponds to at least twotarget transmissions of a target uplink channel, the indicationinformation may be used to simultaneously indicate a transmissionparameter corresponding to at least two target transmissions of a targetuplink channel.

It should be noted that in this embodiment of this disclosure, thenumber of target uplink channels may be equal to or greater than 1. In acase that the number of target uplink channels is greater than 1, thatthe indication information is used to indicate at least two targettransmissions of a target uplink channel can be understood as: theindication information is used to indicate a transmission parametercorresponding to at least two target transmissions of each uplinkchannel of the target uplink channels. In addition, the number of targettransmissions of each uplink channel of the target uplink channels canbe equal or unequal.

Further, in the case that the transmission parameter corresponds to atleast two target transmissions of a target uplink channel, the targettransmission may be represented as: a repeated transmission, a frequencyhopping transmission, or a fractional transmission. It should beunderstood that content transmitted in each fractional transmission maybe a different part of target content.

It should be noted that if the transmission parameter corresponds to Nuplink channels and at least two target transmissions of a target uplinkchannel, the target uplink channel may be understood as at least oneuplink channel of the N uplink channels.

In this embodiment of this disclosure, the indication information may betransmitted through at least one of RRC layer information, MAC layerinformation, and physical layer control information, where the RRC layerinformation includes RRC signaling, the MAC layer information includes aMAC CE, and the physical layer control information includes DCI. Duringimplementation, a type of information carrying the indicationinformation may be specifically determined according to a transmissionparameter type of an uplink channel indicated by the indicationinformation.

The transmission information may include, but is not limited to, atleast one of the following: an uplink channel transmission scheme,precoding information, spatial relation information, and the number oftransmissions information.

In the uplink channel configuration method according to this embodiment,a network-side device may use one piece of indication information tosimultaneously indicate a transmission parameter corresponding to Nuplink channels, and/or a transmission parameter corresponding to atleast two target transmissions of a target uplink channel, therebyreducing signaling overheads.

In this embodiment of this disclosure, the uplink channel may be PUSCHand/or PUCCH. The following describes a scenario where the uplinkchannel is a PUSCH and a scenario where the uplink channel is a PUCCH,respectively.

Scenario 1: The uplink channel is a PUSCH.

In this scenario, optionally, the indication information is transmittedthrough downlink control information DCI.

In a first implementation, optionally, the DCI includes a firstsignaling field, and the first signaling field is used to indicate anuplink transmission scheme for the PUSCH, where

-   -   the uplink transmission scheme includes at least one of the        following: diversity based PUSCH, codebook based PUSCH, and        non-codebook based PUSCH.

During implementation, the first signaling field may be a new signalingfield in the DCI, or an existing signaling field in the DCI.

Optionally, the first signaling field is a precoding information andnumber of layers signaling field, and the precoding information andnumber of layers signaling field uses a first codepoint to indicate theuplink transmission scheme for the PUSCH.

Different from the related art where DCI format 0_0 is used to indicatediversity based uplink transmission, DCI format 0_1 is used to indicatecodebook or non-codebook based PUSCH. This implementation may use afirst codepoint of the precoding information and number of layerssignaling field to indicate: diversity based PUSCH, codebook basedPUSCH, and non-codebook based PUSCH. In this way, a terminal does notneed to use a plurality of formats in blind detection, thereby reducingoverheads.

During implementation, a specific representation form of an uplinktransmission scheme for the PUSCH indicated by the first codepoint isdetermined based on a type of the first codepoint and/or a value of thefirst codepoint.

Optionally, in a case that the first codepoint is a reserved codepoint,a new codepoint, a codepoint for which a transmitted precoding matrixindicator TPMI is a special value, or a codepoint for which the numberof layers is a special value, the uplink transmission scheme for thePUSCH indicated by the first codepoint is: diversity based PUSCH ornon-codebook based PUSCH.

It should be understood that a special value of the TPMI is a valuedifferent from conventional values of the TPMI. A special value of thenumber of layers is a value different from conventional values of thenumber of layers. During specific implementation, the special values maybe determined in advance, and a special value indicating diversity basedPUSCH is different from a special value indicating a non-codebook basedPUSCH, to improve accuracy of a terminal identifying the uplinktransmission scheme for the PUSCH.

For ease of understanding, refer to FIG. 3a and FIG. 3b together. FIG.3a is a representation form of a precoding information and number oflayers signaling field in the related art, and FIG. 3b is arepresentation form of a precoding information and number of layerssignaling field according to an embodiment of this disclosure.

The precoding information and number of layers signaling field shown inFIG. 3a consists of 4 bits, including 16 codepoints. Codepoint 0 tocodepoint 11 in FIG. 3a are non-reserved codepoints, each including anindicated number of layers and a TPMI value, and the indicated number oflayers values and TPMI values of the non-reserved codepoints in FIG. 3aare conventional values. Codepoint 12 to codepoint 15 are reservedcodepoints.

The precoding information and number of layers signaling field shown inFIG. 3b is obtained by modifying and extending the precoding informationand number of layers signaling field shown in FIG. 3a . Optionally, inthe precoding information and number of layers signaling field shown inFIG. 3b : a TPMI value of codepoint 4 is changed from 0 in FIG. 3a to aspecial value 100, a number of layers value of codepoint 9 is changedfrom 2 in FIG. 3a to a special value 10, codepoint 12 in FIG. 3a is usedto indicate an uplink transmission scheme for the PUSCH, and newcodepoints 16 to 31 are added on a basis of FIG. 3 a.

The TPMI value of codepoint 4 in FIG. 3b is a special value. Therefore,when the precoding information and number of layers signaling field mayuse codepoint 4 in FIG. 3b to indicate an uplink transmission scheme forthe PUSCH, the codepoint 4 in FIG. 3b may be used to indicate diversitybased PUSCH or non-codebook based PUSCH.

The number of layers value of codepoint 9 in FIG. 3b is a special value.Therefore, when the precoding information and number of layers signalingfield may use codepoint 9 in FIG. 3b to indicate an uplink transmissionscheme for the PUSCH, the codepoint 9 in FIG. 3b may be used to indicatediversity based PUSCH or non-codebook based PUSCH.

The codepoint 12 in FIG. 3b is a reserved codepoint before being used toindicate an uplink transmission scheme for the PUSCH. Therefore, whenthe precoding information and number of layers signaling field may usecodepoint 12 in FIG. 3b to indicate an uplink transmission scheme forthe PUSCH, the codepoint 12 in FIG. 3b may be used to indicate diversitybased PUSCH or non-codebook based PUSCH.

Codepoints 16 to 31 are new codepoints in FIG. 3b . Therefore, theprecoding information and number of layers signaling field may use anyone of the codepoints 16 to 31 to indicate diversity based PUSCH ornon-codebook based PUSCH.

It should be noted that for a reserved codepoint indicating diversitybased PUSCH or non-codebook based PUSCH, the codepoint may be a reservedcodepoint inherent in the precoding information and number of layerssignaling field, for example, codepoint 12 shown in FIG. 3 b.

However, in practical applications, the reserved codepoint may beunderstood as a reserved codepoint changed from a non-reserved codepointin the precoding information and number of layers signaling field.

For ease of understanding, reference is made to FIG. 3c . FIG. 3c isanother representation form of a precoding information and number oflayers signaling field according to an embodiment of this disclosure.

The precoding information and number of layers signaling field shown inFIG. 3c is obtained by modifying the precoding information and number oflayers signaling field shown in FIG. 3a . Optionally, in the precodinginformation and number of layers signaling field shown in FIG. 3c :codepoints indicating layers other than 1 layer, that is codepoint 4 tocodepoint 11, are changed to reserved codepoints. In this way, aterminal may use a changed-to-reserved codepoint to indicate diversitybased PUSCH or non-codebook based PUSCH.

For implementation principles of changing a non-reserved codepoint in aprecoding information and number of layers signaling field to a reservedcodepoint, specific descriptions are as follows.

In this embodiment of this disclosure, the number of layers of a PUSCHmay be fixed to 1. Because the number of layers of a PUSCH is fixed to1, compared with a precoding information and number of layers signalingfield in a scenario where the number of layers of a PUSCH is greaterthan 1, the number of layers content required to be indicated in theprecoding information and number of layers signaling field of thisembodiment of this disclosure is reduced. In this way, in thisembodiment of this disclosure, codepoints used to indicate content oflayers other than 1 layer in the precoding information and number oflayers signaling field in the scenario where the number of layers of aPUSCH is greater than 1 may be changed to reserved codepoints, forindicating other types of transmission parameters, for example: forindicating an uplink transmission scheme, precoding information, or beaminformation of an uplink channel. In other words, in this embodiment ofthis disclosure, by fixing the number of layers of a PUSCH to 1, theprecoding information and number of layers signaling field may use samenumber of bits to indicate more transmission parameter types.

Certainly, in this embodiment of this disclosure, the number of bits ofthe precoding information and number of layers signaling field may alsobe reduced by fixing the number of layers of a PUSCH to 1, so as to usethe number of bits saved from the precoding information and number oflayers signaling field to form new signaling fields for indicating othertypes of transmission parameters.

For example, it is assumed that for a PUSCH with 4 layers, the precodinginformation and number of layers signaling field needs to use 6 bits toindicate a transmission parameter, while for a PUSCH with 1 layer, theprecoding information and number of layers signaling field needs to useonly 2 bits to indicate a transmission parameter. Then a network-sidedevice may reduce the number of bits of the precoding information andnumber of layers signaling field to 2, and use 4 bits saved to form anew indication field.

In addition, in this embodiment of this disclosure, by fixing the numberof layers of a PUSCH to 1, inter-layer interference can also be reduced,thereby improving transmission performance.

In a second implementation, optionally, the DCI includes a secondsignaling field, and the second signaling field is used to indicateprecoding information of PUSCH.

Optionally, in a case that the precoding information corresponds to Ncodebook based PUSCHs, the second signaling field is a precodinginformation and number of layers signaling field; and

-   -   the DCI uses one precoding information and number of layers        signaling field to indicate precoding information of the N        codebook based PUSCHs; or    -   the DCI uses N precoding information and number of layers        signaling fields to indicate precoding information of the N        codebook based PUSCHs.

For the implementation that the DCI uses N precoding information andnumber of layers signaling fields to indicate precoding information ofthe N codebook based PUSCHs, it should be understood that the DCI usesone precoding information and number of layers signaling field toindicate precoding information of one codebook based PUSCH.

In addition, the DCI may also determine the number of precodinginformation and number of layers signaling fields included in the DCIbased on the number of TRPs corresponding to the N codebook basedPUSCHs.

For example, if the N codebook based PUSCHs correspond to M TRPs, theDCI may use M precoding information and number of layers signalingfields to indicate precoding information of the N codebook based PUSCHs,where each precoding information and number of layers signaling fieldmay be used to indicate precoding information of codebook based PUSCH(s)corresponding to one TRP.

It should be noted that, in this embodiment of this disclosure, for acodebook based PUSCH, its precoding information can be understood ascodebook information.

Optionally, in a case that the precoding information corresponds to adiversity based PUSCH, the second signaling field is a precodinginformation and number of layers signaling field, and the precodinginformation and number of layers signaling field uses a reservedcodepoint to indicate precoding information of the diversity basedPUSCH.

The reserved codepoint may be understood as a reserved codepoint changedfrom a non-reserved codepoint in the precoding information and number oflayers signaling field. Reference may be made to the related descriptionin the first implementation, and details are not described herein again.

It should be noted that in the case that the precoding informationcorresponds to a diversity based PUSCH, the second signaling field maybe a new signaling field. In addition, in practical applications, theprecoding information of a diversity based PUSCH may be predefined.

During specific implementation, when transmitting a diversity basedPUSCH, a terminal may determine precoding information of the diversitybased PUSCH by using Cycling Precoding. For example, if the precodinginformation of a diversity based PUSCH predefined or indicated in thesecond indication field is precoding information 1 and precodinginformation 2, then when transmitting the diversity based PUSCH for thefirst time, the terminal may use the precoding information 1 fortransmission; when transmitting the diversity based PUSCH for the secondtime, the terminal may use the precoding information 2 for transmission;when transmitting the diversity based PUSCH for the third time, theterminal may use the precoding information 1 for transmission; and whentransmitting the diversity based PUSCH for the fourth time, the terminalmay use the precoding information 2 for transmission, and so on.

In this implementation, further, in a case that the precodinginformation corresponds to at least two target transmissions of a targetPUSCH, the DCI further includes a third signaling field, and the thirdsignaling field is used to indicate the number of target transmissionsof the target PUSCH.

In practical applications, the third signaling field may explicitly orimplicitly indicate the number of target transmissions.

Optionally, for a third signaling field explicitly indicating the numberof target transmissions, the third signaling field may include aspecific number P of target transmissions.

For a third signaling field implicitly indicating the number of targettransmissions, the third signaling field includes no specific number Pof target transmissions, but may include other information that may beused to indicate the number of target transmissions. For example, if atarget transmission is a frequency hopping transmission, the thirdsignaling field may indicate the number of frequency hoppingtransmissions by carrying physical resource blocks (PRB) correspondingto each frequency hopping transmission. For example, if the terminaldetects that 3 PRBs before and after frequency hopping are indicated inthe third signaling field, the number of frequency hopping transmissionsmay be determined to be 3.

In this implementation, the second signaling field may be a newsignaling field. Certainly, the second signaling field may also be asignaling field in the related art. Optionally, in a case that theprecoding information corresponds to at least two target transmissionsof a codebook based target PUSCH, or in a case that the precodinginformation corresponds to at least two target transmissions of anon-codebook based target PUSCH, the second signaling field is asounding reference signal resource indicator SRI signaling field. Duringspecific implementation, the precoding information and number of layerssignaling field as well as the SRI signaling field may use bits orcodepoints saved by fixing the number of layers to 1 to indicate theprecoding information of PUSCH.

In this implementation, the second signaling field may indicateprecoding information of each of at least two target transmissions ofthe target uplink channel. The second signaling field may alternativelyindicate only precoding information of each of S target transmissionsincluded in at least two transmissions of a target uplink channel.

For the scenario in which the second signaling field indicates onlyprecoding information of each of S target transmissions included in atleast two transmissions of a target uplink channel, specificdescriptions are as follows.

In an implementation, a terminal may use precoding information of eachtarget transmission of S target transmissions in cycle based on a presetmode, to perform at least two target transmissions of a target uplinkchannel. The preset mode may be pre-configured by the network-sidedevice using higher-layer signaling, or predefined in a protocol, andthen the pre-configured preset mode may be indicated by a secondsignaling field. For example, if the number of transmissions of a targetuplink channel is 4, the second signaling field indicates that precodinginformation of a first-time transmission of the target uplink channel isprecoding information 1, and indicates that precoding information of asecond-time transmission of the target uplink channel is precodinginformation 2. Then, when performing 4 target transmissions of thetarget uplink channels, the terminal may use the precoding informationin the following order: precoding information 1, precoding information2, precoding information 1, and precoding information 2; or precodinginformation 1, precoding information 2, precoding information 2,precoding information 1. In another implementation, a terminal mayobtain precoding information of each of at least two targettransmissions of a target uplink channel by changing precodinginformation of each of S target transmissions of the target uplinkchannel indicated in the second signaling field, and then use theobtained precoding information of each of the at least two targettransmissions to perform at least two target transmissions.

Scenario 2: The uplink channel is a PUCCH.

In this scenario, optionally, the indication information is transmittedthrough at least one of radio resource control RRC layer information,medium access control MAC layer information, and physical layer controlinformation, where

-   -   the RRC layer information includes RRC signaling; the MAC layer        information includes a MAC control element CE; and the physical        layer control information includes DCI.

Optionally, in a case that the transmission parameter corresponds to NPUCCHs, the indication information includes a first sub indicationinformation, the first sub indication information is used to indicate Qpieces of spatial relation information, and Q is an integer greater thanor equal to N.

Optionally, the first sub indication information may be used to indicateQ pieces of spatial relation information of PUCCHs on a low frequencyrange (FR) 1.

In practical applications, the first sub indication information may betransmitted through RRC signaling.

In a case that Q is equal to N, in one implementation, the indicationinformation may further include second sub indication information, andthe second sub indication information is used to indicate spatialrelation information of each PUCCH of the N PUCCHs. In anotherimplementation, the Q pieces of spatial relation information may be usedas spatial relation information of the PUCCHs respectively according toa preset order, and in this case no second sub indication information isneeded, so that signaling overheads may be reduced.

Further, in a case that Q is greater than N, the indication informationfurther includes second sub indication information, and the second subindication information is used to indicate spatial relation informationof each PUCCH of the N PUCCHs.

In practical applications, the second sub indication information may bea MAC CE. The second sub indication information is used to selectspatial relation information for each PUCCH of the N PUCCHs.

Further, the first sub indication information includes G groups ofspatial relation information, and the spatial relation information ofthe G groups of spatial relation information constitutes the Q pieces ofspatial relation information, where

-   -   G is equal to 1; or, G is equal to N; or, a value of G is equal        to the number of groups that the N PUCCHs are divided to.

For a scenario in which G is equal to 1, one group of spatial relationinformation includes Q pieces of spatial relation information.Therefore, the indication information may include second sub indicationinformation used to select spatial relation information for each PUCCHof the N PUCCHs. Alternatively, the Q pieces of spatial relationinformation are used as spatial relation information of the PUCCHsrespectively according to a preset order, and in this case no second subindication information is needed.

For a scenario in which G is equal to N, the network-side deviceconfigures a group of spatial relation information for each PUCCH of theN PUCCHs. If the number of pieces of spatial relation informationincluded in a group of spatial relation information corresponding to aPUCCH is greater than 1, the network-side device may further send secondsub indication information, in order that a piece of spatial relationinformation for the PUCCH can be selected from its corresponding groupof spatial relation information.

For a scenario in which G is equal to the number of groups that the NPUCCHs are divided to, it should be understood that for each group ofspatial relation information in the G groups, the number of pieces ofspatial relation information included therein is greater than or equalto the number of PUCCHs included in a PUCCH group corresponding to thegroup of spatial relation information. If the number of pieces ofspatial relation information corresponding to a group of PUCCHs isgreater than the number of PUCCHs, the network-side device may send asecond sub indication information, in order that spatial relationinformation for each PUCCH of the groups of PUCCHs can be selected froma group of spatial relation information corresponding to the group ofPUCCHs. In this embodiment of this disclosure, a principle for groupingN PUCCHs is not limited in this disclosure. For example, the principlefor grouping N PUCCHs may be, without limitation: PUCCHs correspondingto a same TRP are divided into one group.

Scenario 3: The uplink channel is a PUCCH or PUSCH.

In this scenario, optionally, in a case that the transmission parametercorresponds to at least two target transmissions of a target uplinkchannel, the indication information includes third sub indicationinformation, and the third sub indication information is used toindicate spatial relation information of at least two targettransmissions of the target uplink channel, where

-   -   the number of pieces of spatial relation information is equal to        or not equal to the number of target transmissions of the target        uplink channel.

It should be noted that the number of pieces of spatial relationinformation is equal to the number of target uplink channels, whichmeans each uplink channel of the target uplink channels corresponds toone piece of spatial relation information.

In practical applications, the third sub indication information in thisscenario may be transmitted through DCI. Optionally, the indicationinformation may be used to indicate spatial relation information of atleast two target transmissions of the target uplink channel on a highfrequency FR2.

For a scenario in which the number of pieces of spatial relationinformation is equal to P, the third sub indication information may beused to indicate spatial relation information of each of at least twotarget transmissions of the target uplink channel.

For a scenario in which the number of pieces of spatial relationinformation is less than the number of target transmissions of thetarget uplink channel, the terminal may use the spatial relationinformation in cycle. Optionally, when the terminal performs at leasttwo target transmissions of the target uplink channel, J targettransmissions of the at least two target transmissions of the targetuplink channel may be performed by reusing first spatial relationinformation in the spatial relation information for transmission. Inother words, the terminal may use the first spatial relation informationrepeatedly for J times in cycle. It should be understood that J isgreater than 1, and less than or equal to the number of targettransmissions of the target uplink channel.

It should be noted that the number of pieces of first spatial relationinformation may be equal to or greater than 1. In a case that the numberof pieces of first spatial relation information is greater than 1, thenumber of target transmissions corresponding to each piece of firstspatial relation information may be equal or unequal.

Further, the J target transmissions are any one of the followingtransmissions: an odd number of target transmissions of at least twotarget transmissions of the target uplink channel; an even number oftarget transmissions of at least two target transmissions of the targetuplink channel; first J target transmissions of at least two targettransmissions of the target uplink channel; and last J targettransmissions of at least two target transmissions of the target uplinkchannel. However, it should be understood that this disclosure does notlimit the selection mode of how to select J target transmissions from atleast two target transmissions.

In practical applications, the terminal may also use the spatialrelation information in cycle according to transmission order whenperforming at least two target transmissions of the target uplinkchannel. Optionally, being in cycle may refer to being in sequentialcycle or reverse cycle. For example, it is assumed that the terminalneeds to perform 6 target transmissions of the target uplink channel.However, the third sub indication information only indicates 3 pieces ofspatial relation information of the target uplink channel, which are:spatial relation information a, spatial relation information b, andspatial relation information c. For sequential cycle, the spatialrelation information used by the terminal in successively performing 6target transmissions of the target uplink channel may be: spatialrelation information a, spatial relation information b, spatial relationinformation c, spatial relation information a, spatial relationinformation b, and spatial relation information c. For a reverse cycle,the spatial relation information used by the terminal in successivelyperforming 6 target transmissions may be: spatial relation informationa, spatial relation information b, spatial relation information c,spatial relation information c, spatial relation information b, andspatial relation information a.

For a scenario in which the number of pieces of spatial relationinformation is greater than the number of target transmissions of thetarget uplink channel, the terminal may select spatial relationinformation for each of at least two target transmissions of the targetuplink channel from the spatial relation information. Optionally, inperforming at least two target transmissions of the target uplinkchannel, the terminal may perform the at least two target transmissionsof the target uplink channel by using second spatial relationinformation in the spatial relation information. It should be noted thatthe number of pieces of second spatial relation information is equal tothe number of target transmissions of the target uplink channel.

Further, the second spatial relation information is: first p pieces ofspatial relation information in the spatial relation information that isarranged in order; or, the second spatial relation information is: ppieces of spatial relation information with the smallest spatialdistances to target spatial relation information in the spatial relationinformation; where the target spatial relation information is spatialrelation information used in historical transmission of an uplinkchannel corresponding to at least two target transmissions of the targetuplink channel; and P is the number of target transmissions of thetarget uplink channel. However, it should be understood that thisdisclosure does not limit the selection mode of who to select secondspatial relation information from the spatial relation information.

It should be noted that various optional implementations described inthe embodiments of this disclosure may be implemented in combination ormay be implemented separately, which is not limited in the embodimentsof this disclosure.

FIG. 4 is a flowchart of an uplink channel transmission method accordingto an embodiment of this disclosure. The uplink channel transmissionmethod shown in FIG. 4 may be applied to a terminal.

As shown in FIG. 4, the uplink channel transmission method in thisembodiment of this disclosure may include the following step.

Step 401: Perform transmission of an uplink channel according to anuplink channel related transmission parameter, where the transmissionparameter corresponds to N uplink channels and/or at least two targettransmissions of a target uplink channel, and N is an integer greaterthan 1.

During implementation, the uplink channel related transmission parametermay be predefined and/or configured by a network-side device.

Optionally, the transmission parameter includes a predefined number oflayers of an uplink channel, and the number of layers is 1.

At least the following beneficial effects may be achieved by fixing thenumber of layers of an uplink channel to 1: inter-layer interference maybe reduced, thereby improving transmission performance; and furthermore,the number of bits for indicating the number of layers information maybe reduced, so that saved bits may be used to indicate other types oftransmission parameters.

Optionally, in a case that the transmission parameter corresponds to atleast two target transmissions of a target uplink channel, thetransmission parameter includes: a predefined first association betweenthe number of target transmissions of a target uplink channel andprecoding information, and/or a predefined second association betweenthe number of target transmissions of a target uplink channel andspatial relation information.

In this way, when the terminal performs each of the at least twotransmissions of the target uplink channel, the terminal may determineprecoding information and/or spatial relation information for eachtransmission without indication from the network side device, therebyreducing signaling overheads.

Optionally, before the performing transmission of an uplink channelaccording to an uplink channel related transmission parameter, themethod further includes:

-   -   receiving indication information sent by a network-side device,        where the indication information is used to indicate the uplink        channel related transmission parameter.

In this implementation, the transmission information of the uplinkchannel is configured by the network-side device.

Optionally:

-   -   in a case that the transmission parameter corresponds to N        uplink channels, the N uplink channels correspond to M        transmission and reception points TRPs, and M is an integer        greater than 1; or    -   in a case that the transmission parameter corresponds to at        least two target transmissions of a target uplink channel, the        target transmission is: a repeated transmission, a frequency        hopping transmission, or a fractional transmission.

Optionally, the TRP is defined by at least one of the following: acontrol resource set or a control resource set group; an explicitlydefined TRP; a transmission configuration indication state, atransmission configuration indication state list or a transmissionconfiguration indication state pool; QCL information or QCL groupinformation; spatial relation information or spatial relation groupinformation; a physical downlink control channel PDCCH scramblingidentifier or a PDCCH scrambling identifier group; a physical downlinkshared channel PDSCH scrambling identifier or a PDSCH scramblingidentifier group; a PDCCH-Config information element; and a PDSCH-Configinformation element.

Optionally, in a case that the uplink channel is a physical uplinkshared channel PUSCH, the indication information is transmitted throughdownlink control information DCI.

Optionally, the DCI includes a first signaling field, and the firstsignaling field is used to indicate an uplink transmission scheme forthe PUSCH, where

-   -   the uplink transmission scheme includes at least one of the        following: diversity based PUSCH, codebook based PUSCH, and        non-codebook based PUSCH.

Optionally, the first signaling field is a precoding information andnumber of layers signaling field, and the precoding information andnumber of layers signaling field uses a first codepoint to indicate theuplink transmission scheme for the PUSCH.

Optionally, in a case that the first codepoint is a reserved codepoint,a new codepoint, a codepoint for which a transmitted precoding matrixindicator TPMI is a special value, or a codepoint for which the numberof layers is a special value, the uplink transmission scheme for thePUSCH indicated by the first codepoint is: diversity based PUSCH ornon-codebook based PUSCH.

Optionally, the DCI includes a second signaling field, and the secondsignaling field is used to indicate precoding information of the PUSCH.

Optionally, in a case that the precoding information corresponds to Ncodebook based PUSCHs, the second signaling field is a precodinginformation and number of layers signaling field; and

-   -   the DCI uses one precoding information and number of layers        signaling field to indicate precoding information of the N        codebook based PUSCHs; or    -   the DCI uses N precoding information and number of layers        signaling fields to indicate precoding information of the N        codebook based PUSCHs.

Optionally, in a case that the precoding information corresponds to adiversity based PUSCH, the second signaling field is a precodinginformation and number of layers signaling field, and the precodinginformation and number of layers signaling field uses a reservedcodepoint to indicate precoding information of the diversity basedPUSCH.

Optionally, in a case that the precoding information corresponds to atleast two target transmissions of a target PUSCH, the DCI furtherincludes a third signaling field, and the third signaling field is usedto indicate the number of target transmissions of the target PUSCH.

Optionally,

-   -   in a case that the precoding information corresponds to at least        two target transmissions of a codebook based target PUSCH, the        second signaling field is a precoding information and number of        layers signaling field; or    -   in a case that the precoding information corresponds to at least        two target transmissions of a non-codebook based target PUSCH,        the second signaling field is a sounding reference signal        resource indicator SRI signaling field.

Optionally, the uplink channel is a physical uplink control channelPUCCH, and the indication information is transmitted through at leastone of radio resource control RRC layer information, medium accesscontrol MAC layer information, and physical layer control information,where

-   -   the RRC layer information includes RRC signaling; the MAC layer        information includes a MAC control element CE; and the physical        layer control information includes DCI.

Optionally, in a case that the transmission parameter corresponds to NPUCCHs, the indication information includes a first sub indicationinformation, the first sub indication information is used to indicate Qpieces of spatial relation information, and Q is an integer greater thanor equal to N.

Optionally, the first sub indication information includes G groups ofspatial relation information, and the spatial relation information ofthe G groups of spatial relation information constitutes the Q pieces ofspatial relation information, where

-   -   G is equal to 1; or, G is equal to N; or, a value of G is equal        to the number of groups that the N PUCCHs are divided to.

Optionally, in a case that Q is greater than N, the indicationinformation further includes second sub indication information, and thesecond sub indication information is used to indicate spatial relationinformation of each PUCCH of the N PUCCHs.

Optionally, in a case that the transmission parameter corresponds to atleast two target transmissions of a target uplink channel, theindication information includes third sub indication information, andthe third sub indication information is used to indicate spatialrelation information of at least two target transmissions of the targetuplink channel, where

-   -   the number of pieces of spatial relation information is equal to        or not equal to the number of target transmissions of the target        uplink channel.

Optionally, in a case that the number of pieces of spatial relationinformation is less than the number of target transmissions of thetarget uplink channel, the performing transmission of an uplink channelaccording to an uplink channel related transmission parameter includes:performing J target transmissions of at least two target transmissionsof the target uplink channel by reusing first spatial relationinformation in the spatial relation information.

Optionally, the J target transmissions are any one of the followingtransmissions:

-   -   an odd number of target transmissions of at least two target        transmissions of the target uplink channel;    -   an even number of target transmissions of at least two target        transmissions of the target uplink channel;    -   first J target transmissions of at least two target        transmissions of the target uplink channel; and    -   last J target transmissions of at least two target transmissions        of the target uplink channel.

Optionally, in a case that the number of pieces of spatial relationinformation is less than the number of target transmissions of thetarget uplink channel, the performing transmission of an uplink channelaccording to an uplink channel related transmission parameter includes:performing at least two target transmissions of the target uplinkchannel by using second spatial relation information in the spatialrelation information, the number of pieces of second spatial relationinformation being equal to the number of target transmissions of thetarget uplink channel.

Optionally,

-   -   the second spatial relation information is: first p pieces of        spatial relation information in the spatial relation information        that is arranged in order; or    -   the second spatial relation information is: p pieces of spatial        relation information with the smallest spatial distances to        target spatial relation information in the spatial relation        information;    -   where the target spatial relation information is spatial        relation information used in historical transmission of an        uplink channel corresponding to at least two target        transmissions of the target uplink channel; and P is the number        of target transmissions of the target uplink channel.

It should be noted that this embodiment serves as an implementation ofthe terminal corresponding to the foregoing method embodiment in FIG. 2.Therefore, reference can be made to the related description in theforegoing method embodiment, and the same beneficial effects can beachieved. To avoid repetition, details are not described again herein.

In addition, various optional implementations described in thisembodiment of this disclosure may be implemented in combination or maybe implemented separately, which is not limited in this embodiment ofthis disclosure.

In the uplink channel transmission method according to this embodiment,a terminal may perform transmission of an uplink channel according to atransmission parameter corresponding to N uplink channels, and/or atransmission parameter corresponding to at least two targettransmissions of a target uplink channel, thereby improving transmissionperformance.

The main ideas and specific processes in this disclosure are as follows.

-   -   (1) For codebook based PUSCH:    -   (a) The signaling field “Precoding information and number of        layers” in DCI is modified or extended.        -   i. For PUSCH(s) that UE transmits to each TRP, one signaling            field “Precoding information and number of layers” is used            in DCI for each TRP.        -   ii. For a PUSCH that UE transmits to a plurality of TRPs,            one common signaling field “Precoding information and number            of layers” is used in the DCI, and when the DCI uses this            signaling field to indicate codebook information of the            PUSCH, a signaling value of the signaling field indicates            that the UE transmits codebook information of the PUSCH to a            plurality of TRPs simultaneously.    -   (b) The number of layers of a PUSCH is fixed to 1.    -   (c) DCI is used to dynamically indicate switching between        diversity based PUSCH and codebook based PUSCH.        -   i. In the related art, DCI format 0_0 is used to indicate            diversity based uplink transmission, and DCI format 0_1 is            used to indicate codebook based PUSCH or non-codebook based            PUSCH.        -   ii. For a signaling design that dynamically indicates the            above-described switching function in the DCI:            -   1. A new signaling bit is used.            -   2. Alternatively, a codepoint or bit that is saved by                fixing the number of layers to 1 in b and unused in the                signaling field “Precoding information and number of                layers” is used.            -   3. Alternatively, a special value of a TPMI                corresponding to one codepoint is used in the signaling                field “Precoding information and number of layers” to                indicate diversity based uplink transmission.        -   iii. When using uplink transmit diversity is indicated, the            precoding information used may be any one of the following:            -   1. Predefined precoding information is used.            -   2. A new bit in the DCI or a codepoint or bit that is                unused in the signaling field “Precoding information and                number of layers” in the above b is used.    -   (d) DCI is used to indicate information of repeated transmission        of uplink data.        -   i. In the related art, an RRC parameter “Pusch-Aggregation            Factor” is used to indicate the number of uplink data            repetitions.        -   ii. For a signaling design that indicates the number of            repeated transmissions in the uplink in the DCI:            -   1. A new signaling bit is used.            -   2. Alternatively, a codepoint or bit that is saved by                fixing the number of layers to 1 in b and unused in the                signaling field “Precoding information and number of                layers” is used.        -   iii. Further, for each repeated transmission, different            uplink beam information (Spatial Relation information) may            be used, and DCI may be used to indicate the Spatial            Relation information used for each PUSCH transmission.    -   (e) DCI is used to indicate precoding information of each        repeated transmission, and/or indicate precoding information        after each frequency hopping in frequency hopping transmission.        -   i. Precoding information may be mapped to or associated with            each repeated transmission and/or frequency hopping            transmission.        -   ii. For a signaling design of the precoding information:            -   1. A new signaling field is used for indication;            -   2. Alternatively, a new signaling value in the above                described signaling field “Precoding information and                number of layers” is used.        -   (2) For non-codebook based PUSCH        -   (a) The number of layers of a PUSCH is fixed to 1 (which may            possibly not reduce signaling overheads).        -   (b) DCI is used to dynamically indicate information of            repeated transmission and/or frequency hopping transmission            of uplink data.            -   i. DCI indicates precoding information of each repeated                transmission and/or frequency hopping transmission of                the PUSCH.                -   1. Each repeated transmission and/or frequency                    hopping transmission may be associated with or                    mapped to a signaling value of the signaling field                    “SRS resource indicator”.            -   ii. In a case that UE transmits a PUSCH to a plurality                of TRPs, DCI is used to indicate precoding information                of each repeated transmission and/or frequency hopping                transmission of the PUSCH from the UE to each TRP.                -   1. A TRP to which the UE transmits the PUSCH, and                    each repeated transmission or frequency hopping                    transmission may be associated with or mapped to a                    signaling value of the signaling field “SRS resource                    indicator”.    -   (3) For PUCCH transmission    -   (a) The network uses RRC signaling to configure a plurality of        groups of spatial relation information for the PUCCH, with each        group corresponding to one TRP.    -   i. When the number of pieces of spatial relation information        within a group is greater than 1, the network uses a MAC CE to        select one piece for each TRP.    -   (b) The network uses RRC signaling to configure a plurality of        groups of spatial relation information for the PUCCH, with each        group corresponding to one group of TRPs.        -   ii. The network uses a MAC CE to select, for each TRP in            each group of TRPs, one piece from its corresponding spatial            relation information.    -   (c) The network uses RRC signaling to configure spatial relation        information of the PUCCH, and then uses a MAC CE to select        spatial relation information of the PUCCH for each TRP.    -   (d) The above described a to c may be used for PUCCH        transmission on FR1.    -   (4) For PUSCH and PUCCH beams    -   (a) Beam related information may be used only for PUSCH and        PUCCH transmission on FR2.    -   (b) When the number of repeated transmissions configured or        indicated by the network is the same as the number of pieces of        spatial relation information:        -   i. An association or mapping relation between each            transmission and spatial relation information is predefined.            Then, the network indicates the above pattern, that is            spatial relation information used for each transmission.        -   ii. Alternatively, the signaling field used to indicate            spatial relation information is extended to indicate the            spatial relation information used for each transmission.        -   iii. The above indications may be done in DCI.    -   (c) When the number of repeated transmissions configured or        indicated by the network is different from the number of pieces        of spatial relation information:        -   i. In a case that the former is smaller than the latter, a            number of pieces of spatial relation information that equals            the number of repeated transmissions may be taken, for            example, taken according to a preset rule.        -   ii. In a case that the former is greater than the latter,            same spatial relation information may be used for a            plurality of repeated transmissions. For example, the            spatial relation information is reused in cycle.

Main innovation and protection points of this disclosure

For codebook based PUSCH:

-   -   the signaling field “Precoding information and number of layers”        is modified or extended to indicate precoding information of a        PUSCH transmitted to a plurality of TRPs;    -   the number of layers is fixed to 1;    -   DCI is used to dynamically indicate switching between diversity        based PUSCH and codebook based PUSCH;    -   DCI is used to indicate information of repeated transmission of        uplink data;    -   DCI is used to indicate precoding information of each repeated        transmission, and/or indicate precoding information after each        frequency hopping in frequency hopping transmission; and    -   DCI is used to indicate spatial relation information of each        repeated transmission, and/or indicate spatial relation        information after each frequency hopping in frequency hopping        transmission.

For non-codebook based PUSCH:

-   -   the number of layers is fixed to 1;    -   DCI is used to indicate precoding information and/or spatial        relation information of each repeated transmission and/or        frequency hopping transmission of the PUSCH; and    -   DCI is used to indicate precoding information and/or spatial        relation information of each repeated transmission and/or        frequency hopping transmission of the PUSCH from the UE to each        TRP.

For PUCCH transmission on FR1:

-   -   the network uses RRC+MAC CE to indicate Spatial Relation        information of the PUCCH transmitted to each TRP.

For PUSCH and PUCCH on FR2:

-   -   when the number of repeated transmissions configured or        indicated by the network is the same as the number of pieces of        spatial relation information, an association or mapping relation        between each transmission and spatial relation information is        predefined.    -   when the number of repeated transmissions configured or        indicated by the network is different from the number of pieces        of spatial relation information, a number of pieces of spatial        relation information that equals the number of repeated        transmissions is taken, or same spatial relation information is        used for a plurality of repeated transmissions.

The effect and benefits of this disclosure are as follows: thisdisclosure proposes to design a new indication and transmission methodin a scenario where the UE is connected to a plurality of TRPs, tosupport transmission of PUSCH and PUCCH between the UE and the pluralityof TRPs. In fact, this disclosure not only supports the multi-TRPscenario, but in a broad sense, may be used for the UE to transmit aplurality of PUSCHs/PUCCHs or different parts of a channel, that is, aplurality of target transmissions of a channel. In terms of servicetype, this disclosure is suitable for a variety of services such asultra-reliable and low latency communications (URLLC).

FIG. 5 is a first structural diagram of a network-side device accordingto an embodiment of this disclosure. As shown in FIG. 5, thenetwork-side device 500 includes:

-   -   a sending module 501, configured to send indication information        to a terminal, where the indication information is used to        indicate an uplink channel related transmission parameter, the        transmission parameter corresponds to N uplink channels and/or        at least two target transmissions of a target uplink channel,        and N is an integer greater than 1.

Optionally,

-   -   in a case that the transmission parameter corresponds to N        uplink channels, the N uplink channels correspond to M        transmission and reception points TRPs, and M is an integer        greater than 1; or    -   in a case that the transmission parameter corresponds to at        least two target transmissions of a target uplink channel, the        target transmission is: a repeated transmission, a frequency        hopping transmission, or a fractional transmission.

Optionally, the TRP is defined by at least one of the following: acontrol resource set or a control resource set group; an explicitlydefined TRP; a transmission configuration indication state, atransmission configuration indication state list or a transmissionconfiguration indication state pool; QCL information or QCL groupinformation; spatial relation information or spatial relation groupinformation; a physical downlink control channel PDCCH scramblingidentifier or a PDCCH scrambling identifier group; a physical downlinkshared channel PDSCH scrambling identifier or a PDSCH scramblingidentifier group; a PDCCH-Config information element; and a PDSCH-Configinformation element.

Optionally, in a case that the uplink channel is a physical uplinkshared channel PUSCH, the indication information is transmitted throughdownlink control information DCI.

Optionally, the DCI includes a first signaling field, and the firstsignaling field is used to indicate an uplink transmission scheme forthe PUSCH, where

-   -   the uplink transmission scheme includes at least one of the        following: diversity based PUSCH, codebook based PUSCH, and        non-codebook based PUSCH.

Optionally, the first signaling field is a precoding information andnumber of layers signaling field, and the precoding information andnumber of layers signaling field uses a first codepoint to indicate theuplink transmission scheme for the PUSCH.

Optionally, in a case that the first codepoint is a reserved codepoint,a new codepoint, a codepoint for which a transmitted precoding matrixindicator TPMI is a special value, or a codepoint for which the numberof layers is a special value, the uplink transmission scheme for thePUSCH indicated by the first codepoint is: diversity based PUSCH ornon-codebook based PUSCH.

Optionally, the DCI includes a second signaling field, and the secondsignaling field is used to indicate precoding information of the PUSCH.

Optionally, in a case that the precoding information corresponds to Ncodebook based PUSCHs, the second signaling field is a precodinginformation and number of layers signaling field; and

-   -   the DCI uses one precoding information and number of layers        signaling field to indicate precoding information of the N        codebook based PUSCHs; or    -   the DCI uses N precoding information and number of layers        signaling fields to indicate precoding information of the N        codebook based PUSCHs.

Optionally, in a case that the precoding information corresponds to adiversity based PUSCH, the second signaling field is a precodinginformation and number of layers signaling field, and the precodinginformation and number of layers signaling field uses a reservedcodepoint to indicate precoding information of the diversity basedPUSCH.

Optionally, in a case that the precoding information corresponds to atleast two target transmissions of a target PUSCH, the DCI furtherincludes a third signaling field, and the third signaling field is usedto indicate the number of target transmissions of the target PUSCH.

Optionally,

-   -   in a case that the precoding information corresponds to at least        two target transmissions of a codebook based target PUSCH, the        second signaling field is a precoding information and number of        layers signaling field; or    -   in a case that the precoding information corresponds to at least        two target transmissions of a non-codebook based target PUSCH,        the second signaling field is a sounding reference signal        resource indicator SRI signaling field.

Optionally, the uplink channel is a physical uplink control channelPUCCH, and the indication information is transmitted through at leastone of radio resource control RRC layer information, medium accesscontrol MAC layer information, and physical layer control information,where

-   -   the RRC layer information includes RRC signaling; the MAC layer        information includes a MAC control element CE; and the physical        layer control information includes DCI.

Optionally, in a case that the transmission parameter corresponds to NPUCCHs, the indication information includes a first sub indicationinformation, the first sub indication information is used to indicate Qpieces of spatial relation information, and Q is an integer greater thanor equal to N.

Optionally, the first sub indication information includes G groups ofspatial relation information, and the spatial relation information ofthe G groups of spatial relation information constitutes the Q pieces ofspatial relation information, where

-   -   G is equal to 1; or, G is equal to N; or, a value of G is equal        to the number of groups that the N PUCCHs are divided to.

Optionally, in a case that Q is greater than N, the indicationinformation further includes second sub indication information, and thesecond sub indication information is used to indicate spatial relationinformation of each PUCCH of the N PUCCHs.

Optionally, in a case that the transmission parameter corresponds to atleast two target transmissions of a target uplink channel, theindication information includes third sub indication information, andthe third sub indication information is used to indicate spatialrelation information of at least two target transmissions of the targetuplink channel, where

-   -   the number of pieces of spatial relation information is equal to        or not equal to the number of target transmissions of the target        uplink channel.

The network-side device 500 can implement the processes of the methodembodiment in FIG. 2 of this disclosure, with the same beneficialeffects achieved. To avoid repetition, details are not described againherein.

FIG. 6 is a first structural diagram of a terminal according to anembodiment of this disclosure. As shown in FIG. 6, the terminal 600includes:

-   -   a transmission module 601, configured to perform transmission of        an uplink channel according to an uplink channel related        transmission parameter, where the transmission parameter        corresponds to N uplink channels and/or at least two target        transmissions of a target uplink channel, and N is an integer        greater than 1.

Optionally, the transmission parameter includes a predefined number oflayers of an uplink channel, and the number of layers is 1.

Optionally, in a case that the transmission parameter corresponds to atleast two target transmissions of a target uplink channel, thetransmission parameter includes: a predefined first association betweenthe number of target transmissions of a target uplink channel andprecoding information, and/or a predefined second association betweenthe number of target transmissions of a target uplink channel andspatial relation information.

Optionally, the terminal 600 further includes:

-   -   a receiving module, configured to receive, before performing        transmission of an uplink channel according to an uplink channel        related transmission parameter, indication information sent by a        network-side device, where the indication information is used to        indicate the uplink channel related transmission parameter.

Optionally,

-   -   in a case that the transmission parameter corresponds to N        uplink channels, the N uplink channels correspond to M        transmission and reception points TRPs, and M is an integer        greater than 1; or    -   in a case that the transmission parameter corresponds to at        least two target transmissions of a target uplink channel, the        target transmission is: a repeated transmission, a frequency        hopping transmission, or a fractional transmission.

Optionally, the TRP is defined by at least one of the following: acontrol resource set or a control resource set group; an explicitlydefined TRP; a transmission configuration indication state, atransmission configuration indication state list or a transmissionconfiguration indication state pool; QCL information or QCL groupinformation; spatial relation information or spatial relation groupinformation; a physical downlink control channel PDCCH scramblingidentifier or a PDCCH scrambling identifier group; a physical downlinkshared channel PDSCH scrambling identifier or a PDSCH scramblingidentifier group; a PDCCH-Config information element; and a PDSCH-Configinformation element.

Optionally, in a case that the uplink channel is a physical uplinkshared channel PUSCH, the indication information is transmitted throughdownlink control information DCI.

Optionally, the DCI includes a first signaling field, and the firstsignaling field is used to indicate an uplink transmission scheme forthe PUSCH, where

-   -   the uplink transmission scheme includes at least one of the        following: diversity based PUSCH, codebook based PUSCH, and        non-codebook based PUSCH.

Optionally, the first signaling field is a precoding information andnumber of layers signaling field, and the precoding information andnumber of layers signaling field uses a first codepoint to indicate theuplink transmission scheme for the PUSCH.

Optionally, in a case that the first codepoint is a reserved codepoint,a new codepoint, a codepoint for which a transmitted precoding matrixindicator TPMI is a special value, or a codepoint for which the numberof layers is a special value, the uplink transmission scheme for thePUSCH indicated by the first codepoint is: diversity based PUSCH ornon-codebook based PUSCH.

Optionally, the DCI includes a second signaling field, and the secondsignaling field is used to indicate precoding information of the PUSCH.

Optionally, in a case that the precoding information corresponds to Ncodebook based PUSCHs, the second signaling field is a precodinginformation and number of layers signaling field; and

-   -   the DCI uses one precoding information and number of layers        signaling field to indicate precoding information of the N        codebook based PUSCHs; or    -   the DCI uses N precoding information and number of layers        signaling fields to indicate precoding information of the N        codebook based PUSCHs.

Optionally, in a case that the precoding information corresponds to adiversity based PUSCH, the second signaling field is a precodinginformation and number of layers signaling field, and the precodinginformation and number of layers signaling field uses a reservedcodepoint to indicate precoding information of the diversity basedPUSCH.

Optionally, in a case that the precoding information corresponds to atleast two target transmissions of a target PUSCH, the DCI furtherincludes a third signaling field, and the third signaling field is usedto indicate the number of target transmissions of the target PUSCH.

Optionally,

-   -   in a case that the precoding information corresponds to at least        two target transmissions of a codebook based target PUSCH, the        second signaling field is a precoding information and number of        layers signaling field; or in a case that the precoding        information corresponds to at least two target transmissions of        a non-codebook based target PUSCH, the second signaling field is        a sounding reference signal resource indicator SRI signaling        field.

Optionally, the uplink channel is a physical uplink control channelPUCCH, and the indication information is transmitted through at leastone of radio resource control RRC layer information, medium accesscontrol MAC layer information, and physical layer control information,where

-   -   the RRC layer information includes RRC signaling; the MAC layer        information includes a MAC control element CE; and the physical        layer control information includes DCI.

Optionally, in a case that the transmission parameter corresponds to NPUCCHs, the indication information includes a first sub indicationinformation, the first sub indication information is used to indicate Qpieces of spatial relation information, and Q is an integer greater thanor equal to N.

Optionally, the first sub indication information includes G groups ofspatial relation information, and the spatial relation information ofthe G groups of spatial relation information constitutes the Q pieces ofspatial relation information, where

-   -   G is equal to 1; or, G is equal to N; or, a value of G is equal        to the number of groups that the N PUCCHs are divided to.

Optionally, in a case that Q is greater than N, the indicationinformation further includes second sub indication information, and thesecond sub indication information is used to indicate spatial relationinformation of each PUCCH of the N PUCCHs.

Optionally, in a case that the transmission parameter corresponds to atleast two target transmissions of a target uplink channel, theindication information includes third sub indication information, andthe third sub indication information is used to indicate spatialrelation information of at least two target transmissions of the targetuplink channel, where

-   -   the number of pieces of spatial relation information is equal to        or not equal to the number of target transmissions of the target        uplink channel.

Optionally, in a case that the number of pieces of spatial relationinformation is less than the number of target transmissions of thetarget uplink channel, the transmission module 601 is specificallyconfigured to: perform J target transmissions of at least two targettransmissions of the target uplink channel by reusing first spatialrelation information in the spatial relation information.

Optionally, the J target transmissions are any one of the followingtransmissions:

-   -   an odd number of target transmissions of at least two target        transmissions of the target uplink channel;    -   an even number of target transmissions of at least two target        transmissions of the target uplink channel;    -   first J target transmissions of at least two target        transmissions of the target uplink channel; and    -   last J target transmissions of at least two target transmissions        of the target uplink channel.

Optionally, in a case that the number of pieces of spatial relationinformation is less than the number of target transmissions of thetarget uplink channel, the transmission module 601 is specificallyconfigured to: perform at least two target transmissions of the targetuplink channel by using second spatial relation information in thespatial relation information, the number of pieces of second spatialrelation information being equal to the number of target transmissionsof the target uplink channel.

Optionally,

-   -   the second spatial relation information is: first p pieces of        spatial relation information in the spatial relation information        that is arranged in order; or    -   the second spatial relation information is: p pieces of spatial        relation information with the smallest spatial distances to        target spatial relation information in the spatial relation        information;    -   where the target spatial relation information is spatial        relation information used in historical transmission of an        uplink channel corresponding to at least two target        transmissions of the target uplink channel; and P is the number        of target transmissions of the target uplink channel.

The terminal 600 can implement the processes of the method embodiment inFIG. 4 of this disclosure, with the same beneficial effects achieved. Toavoid repetition, details are not described herein again.

FIG. 7 is a second structural diagram of a network-side device accordingto an embodiment of this disclosure. As shown in FIG. 7, a network-sidedevice 700 includes a processor 701, a memory 702, a user interface 703,a transceiver 704, and a bus interface.

In this embodiment of this disclosure, the network-side device 700further includes a computer program stored in the memory 702 and capableof running on the processor 701. When the computer program is executedby the processor 701, the following step is implemented:

-   -   sending indication information to a terminal, wherein the        indication information is used to indicate an uplink channel        related transmission parameter, the transmission parameter        corresponds to N uplink channels and/or at least two target        transmissions of a target uplink channel, and N is an integer        greater than 1.

Optionally,

-   -   in a case that the transmission parameter corresponds to N        uplink channels, the N uplink channels correspond to M        transmission and reception points TRPs, and M is an integer        greater than 1; or    -   in a case that the transmission parameter corresponds to at        least two target transmissions of a target uplink channel, the        target transmission is: a repeated transmission, a frequency        hopping transmission, or a fractional transmission.

Optionally, the TRP is defined by at least one of the following: acontrol resource set or a control resource set group; an explicitlydefined TRP; a transmission configuration indication state, atransmission configuration indication state list or a transmissionconfiguration indication state pool; QCL information or QCL groupinformation; spatial relation information or spatial relation groupinformation; a physical downlink control channel PDCCH scramblingidentifier or a PDCCH scrambling identifier group; a physical downlinkshared channel PDSCH scrambling identifier or a PDSCH scramblingidentifier group; a PDCCH-Config information element; and a PDSCH-Configinformation element.

Optionally, in a case that the uplink channel is a physical uplinkshared channel PUSCH, the indication information is transmitted throughdownlink control information DCI.

Optionally, the DCI includes a first signaling field, and the firstsignaling field is used to indicate an uplink transmission scheme forthe PUSCH, where

-   -   the uplink transmission scheme includes at least one of the        following: diversity based PUSCH, codebook based PUSCH, and        non-codebook based PUSCH.

Optionally, the first signaling field is a precoding information andnumber of layers signaling field, and the precoding information andnumber of layers signaling field uses a first codepoint to indicate theuplink transmission scheme for the PUSCH.

Optionally, in a case that the first codepoint is a reserved codepoint,a new codepoint, a codepoint for which a transmitted precoding matrixindicator TPMI is a special value, or a codepoint for which the numberof layers is a special value, the uplink transmission scheme for thePUSCH indicated by the first codepoint is: diversity based PUSCH ornon-codebook based PUSCH.

Optionally, the DCI includes a second signaling field, and the secondsignaling field is used to indicate precoding information of the PUSCH.

Optionally, in a case that the precoding information corresponds to Ncodebook based PUSCHs, the second signaling field is a precodinginformation and number of layers signaling field; and

-   -   the DCI uses one precoding information and number of layers        signaling field to indicate precoding information of the N        codebook based PUSCHs; or    -   the DCI uses N precoding information and number of layers        signaling fields to indicate precoding information of the N        codebook based PUSCHs.

Optionally, in a case that the precoding information corresponds to adiversity based PUSCH, the second signaling field is a precodinginformation and number of layers signaling field, and the precodinginformation and number of layers signaling field uses a reservedcodepoint to indicate precoding information of the diversity basedPUSCH.

Optionally, in a case that the precoding information corresponds to atleast two target transmissions of a target PUSCH, the DCI furtherincludes a third signaling field, and the third signaling field is usedto indicate the number of target transmissions of the target PUSCH.

Optionally,

-   -   in a case that the precoding information corresponds to at least        two target transmissions of a codebook based target PUSCH, the        second signaling field is a precoding information and number of        layers signaling field; or    -   in a case that the precoding information corresponds to at least        two target transmissions of a non-codebook based target PUSCH,        the second signaling field is a sounding reference signal        resource indicator SRI signaling field.

Optionally, the uplink channel is a physical uplink control channelPUCCH, and the indication information is transmitted through at leastone of radio resource control RRC layer information, medium accesscontrol MAC layer information, and physical layer control information,where

-   -   the RRC layer information includes RRC signaling; the MAC layer        information includes a MAC control element CE; and the physical        layer control information includes DCI.

Optionally, in a case that the transmission parameter corresponds to NPUCCHs, the indication information includes a first sub indicationinformation, the first sub indication information is used to indicate Qpieces of spatial relation information, and Q is an integer greater thanor equal to N.

Optionally, the first sub indication information includes G groups ofspatial relation information, and the spatial relation information ofthe G groups of spatial relation information constitutes the Q pieces ofspatial relation information, where

-   -   G is equal to 1; or, G is equal to N; or, a value of G is equal        to the number of groups that the N PUCCHs are divided to.

Optionally, in a case that Q is greater than N, the indicationinformation further includes second sub indication information, and thesecond sub indication information is used to indicate spatial relationinformation of each PUCCH of the N PUCCHs.

Optionally, in a case that the transmission parameter corresponds to atleast two target transmissions of a target uplink channel, theindication information includes third sub indication information, andthe third sub indication information is used to indicate spatialrelation information of at least two target transmissions of the targetuplink channel, where

-   -   the number of pieces of spatial relation information is equal to        or not equal to the number of target transmissions of the target        uplink channel.

In FIG. 7, a bus architecture may include any quantity of interconnectedbuses and bridges, and specifically connect together various circuits ofone or more processors represented by the processor 701 and a memoryrepresented by the memory 702. The bus architecture may furtherinterconnect various other circuits such as a peripheral device, avoltage regulator, and a power management circuit. These are all wellknown in the art, and therefore are not further described in thisspecification. The bus interface provides interfaces. The transceiver704 may be a plurality of components, including a transmitter and areceiver, and provides units for communicating with a variety of otherapparatuses on a transmission medium. For different user equipment, theuser interface 703 may also be an interface capable of externally orinternally connecting a required device, and the connected deviceincludes but is not limited to a keypad, a display, a speaker, amicrophone, a joystick, and the like.

The processor 701 is responsible for management of the bus architectureand general processing, and the memory 702 may store data for use by theprocessor 701 when the processor 701 performs an operation.

The network-side device 700 is capable of implementing the processesimplemented by the network-side device in the foregoing methodembodiments. To avoid repetition, details are not described hereinagain.

FIG. 8 is a second structural diagram of a terminal according to anembodiment of this disclosure. The terminal may be a terminalimplementing the embodiments of this disclosure. As shown in FIG. 8, theterminal 800 includes but is not limited to components such as a radiofrequency unit 801, a network module 802, an audio output unit 803, aninput unit 804, a sensor 805, a display unit 806, a user input unit 807,an interface unit 808, a memory 809, a processor 810, and a power supply811. A person skilled in the art may understand that the structure ofthe terminal shown in FIG. 8 does not constitute a limitation on theterminal. The terminal may include more or fewer components than thoseshown in the figure, or combine some of the components, or employ adifferent component arrangement. In this embodiment of this disclosure,the terminal includes but is not limited to a mobile phone, a tabletcomputer, a notebook computer, a palmtop computer, an in-vehicleterminal, a wearable device, a pedometer, or the like.

The radio frequency unit 801 is configured to:

-   -   perform transmission of an uplink channel according to an uplink        channel related transmission parameter, where the transmission        parameter corresponds to N uplink channels and/or at least two        target transmissions of a target uplink channel, and N is an        integer greater than 1.

Optionally, the transmission parameter includes a predefined number oflayers of an uplink channel, and the number of layers is 1.

Optionally, in a case that the transmission parameter corresponds to atleast two target transmissions of a target uplink channel, thetransmission parameter includes: a predefined first association betweenthe number of target transmissions of a target uplink channel andprecoding information, and/or a predefined second association betweenthe number of target transmissions of a target uplink channel andspatial relation information.

Optionally, the radio frequency unit 801 is further configured to:

-   -   before performing the transmission of an uplink channel        according to an uplink channel related transmission parameter,        receive indication information sent by a network-side device,        where the indication information is used to indicate the uplink        channel related transmission parameter.

Optionally,

-   -   in a case that the transmission parameter corresponds to N        uplink channels, the N uplink channels correspond to M        transmission and reception points TRPs, and M is an integer        greater than 1; or    -   in a case that the transmission parameter corresponds to at        least two target transmissions of a target uplink channel, the        target transmission is: a repeated transmission, a frequency        hopping transmission, or a fractional transmission.

Optionally, the TRP is defined by at least one of the following: acontrol resource set or a control resource set group; an explicitlydefined TRP; a transmission configuration indication state, atransmission configuration indication state list or a transmissionconfiguration indication state pool; QCL information or QCL groupinformation; spatial relation information or spatial relation groupinformation; a physical downlink control channel PDCCH scramblingidentifier or a PDCCH scrambling identifier group; a physical downlinkshared channel PDSCH scrambling identifier or a PDSCH scramblingidentifier group; a PDCCH-Config information element; and a PDSCH-Configinformation element.

Optionally, in a case that the uplink channel is a physical uplinkshared channel PUSCH, the indication information is transmitted throughdownlink control information DCI.

Optionally, the DCI includes a first signaling field, and the firstsignaling field is used to indicate an uplink transmission scheme forthe PUSCH, where

-   -   the uplink transmission scheme includes at least one of the        following: diversity based PUSCH, codebook based PUSCH, and        non-codebook based PUSCH.

Optionally, the first signaling field is a precoding information andnumber of layers signaling field, and the precoding information andnumber of layers signaling field uses a first codepoint to indicate theuplink transmission scheme for the PUSCH.

Optionally, in a case that the first codepoint is a reserved codepoint,a new codepoint, a codepoint for which a transmitted precoding matrixindicator TPMI is a special value, or a codepoint for which the numberof layers is a special value, the uplink transmission scheme for thePUSCH indicated by the first codepoint is: diversity based PUSCH ornon-codebook based PUSCH.

Optionally, the DCI includes a second signaling field, and the secondsignaling field is used to indicate precoding information of the PUSCH.

Optionally, in a case that the precoding information corresponds to Ncodebook based PUSCHs, the second signaling field is a precodinginformation and number of layers signaling field; and

-   -   the DCI uses one precoding information and number of layers        signaling field to indicate precoding information of the N        codebook based PUSCHs; or    -   the DCI uses N precoding information and number of layers        signaling fields to indicate precoding information of the N        codebook based PUSCHs.

Optionally, in a case that the precoding information corresponds to adiversity based PUSCH, the second signaling field is a precodinginformation and number of layers signaling field, and the precodinginformation and number of layers signaling field uses a reservedcodepoint to indicate precoding information of the diversity basedPUSCH.

Optionally, in a case that the precoding information corresponds to atleast two target transmissions of a target PUSCH, the DCI furtherincludes a third signaling field, and the third signaling field is usedto indicate the number of target transmissions of the target PUSCH.

Optionally,

-   -   in a case that the precoding information corresponds to at least        two target transmissions of a codebook based target PUSCH, the        second signaling field is a precoding information and number of        layers signaling field; or    -   in a case that the precoding information corresponds to at least        two target transmissions of a non-codebook based target PUSCH,        the second signaling field is a sounding reference signal        resource indicator SRI signaling field.

Optionally, the uplink channel is a physical uplink control channelPUCCH, and the indication information is transmitted through at leastone of radio resource control RRC layer information, medium accesscontrol MAC layer information, and physical layer control information,where

-   -   the RRC layer information includes RRC signaling; the MAC layer        information includes a MAC control element CE; and the physical        layer control information includes DCI.

Optionally, in a case that the transmission parameter corresponds to NPUCCHs, the indication information includes a first sub indicationinformation, the first sub indication information is used to indicate Qpieces of spatial relation information, and Q is an integer greater thanor equal to N.

Optionally, the first sub indication information includes G groups ofspatial relation information, and the spatial relation information ofthe G groups of spatial relation information constitutes the Q pieces ofspatial relation information, where

-   -   G is equal to 1; or, G is equal to N; or, a value of G is equal        to the number of groups that the N PUCCHs are divided to.

Optionally, in a case that Q is greater than N, the indicationinformation further includes second sub indication information, and thesecond sub indication information is used to indicate spatial relationinformation of each PUCCH of the N PUCCHs.

Optionally, in a case that the transmission parameter corresponds to atleast two target transmissions of a target uplink channel, theindication information includes third sub indication information, andthe third sub indication information is used to indicate spatialrelation information of at least two target transmissions of the targetuplink channel, where

-   -   the number of pieces of spatial relation information is equal to        or not equal to the number of target transmissions of the target        uplink channel.

Optionally, in a case that the number of pieces of spatial relationinformation is less than the number of target transmissions of thetarget uplink channel, the radio frequency unit 801 is furtherconfigured to: perform J target transmissions of at least two targettransmissions of the target uplink channel by reusing first spatialrelation information in the spatial relation information.

Optionally, the J target transmissions are any one of the followingtransmissions:

-   -   an odd number of target transmissions of at least two target        transmissions of the target uplink channel;    -   an even number of target transmissions of at least two target        transmissions of the target uplink channel;    -   first J target transmissions of at least two target        transmissions of the target uplink channel; and    -   last J target transmissions of at least two target transmissions        of the target uplink channel.

Optionally, in a case that the number of pieces of spatial relationinformation is greater than the number of target transmissions of thetarget uplink channel, the radio frequency unit 801 is furtherconfigured to: perform at least two target transmissions of the targetuplink channel by using second spatial relation information in thespatial relation information.

Optionally,

-   -   the second spatial relation information is: first p pieces of        spatial relation information in the spatial relation information        that is arranged in order; or    -   the second spatial relation information is: p pieces of spatial        relation information with the smallest spatial distances to        target spatial relation information in the spatial relation        information;    -   where the target spatial relation information is spatial        relation information used in historical transmission of an        uplink channel corresponding to at least two target        transmissions of the target uplink channel; and P is the number        of target transmissions of the target uplink channel.

It should be noted that the terminal 800 in this embodiment mayimplement the processes of the method embodiments implemented by aterminal in the embodiments of this disclosure, with the same beneficialeffects achieved. To avoid repetition, details are not described hereinagain.

It should be understood that, in this embodiment of this disclosure, theradio frequency unit 801 may be configured to transmit or receive asignal in an information transmitting/receiving or call process.Optionally, the radio frequency unit 801 receives downlink data from abase station and transmits the downlink data to the processor 810 forprocessing, and transmits uplink data to the base station. Generally,the radio frequency unit 801 includes but is not limited to an antenna,at least one amplifier, a transceiver, a coupler, a low noise amplifier,a duplexer, and the like. In addition, the radio frequency unit 801 mayfurther communicate with a network and another device through a wirelesscommunications system.

The terminal provides wireless broadband internet access for a user byusing the network module 802, for example, helping the user send andreceive e-mails, browse web pages, and access streaming media.

The audio output unit 803 may convert audio data received by the radiofrequency unit 801 or the network module 802 or stored in the memory 809into an audio signal and output the audio signal as a sound. Inaddition, the audio output unit 803 may further provide audio output(for example, a call signal reception tone or a message reception tone)that is related to a specific function performed by the terminal 800.The audio output unit 803 includes a speaker, a buzzer, a receiver, andthe like.

The input unit 804 is configured to receive an audio signal or a videosignal. The input unit 804 may include a graphics processing unit (GPU)8041 and a microphone 8042. The graphics processing unit 8041 processesimage data of a static picture or a video obtained by an image captureapparatus (for example, a camera) in an image capture mode or a videocapture mode. A processed image frame may be displayed on the displayunit 806. An image frame processed by the graphics processing unit 8041may be stored in the memory 809 (or another storage medium) ortransmitted by the radio frequency unit 801 or the network module 802.The microphone 8042 may receive a sound, and can process the sound intoaudio data. The processed audio data may be converted in a telephonecall mode into a format that can be transmitted by the radio frequencyunit 801 to a mobile communications base station, for outputting.

The terminal 800 further includes at least one sensor 805, for example,an optical sensor, a motion sensor, and other sensors. Optionally, theoptical sensor includes an ambient light sensor and a proximity sensor.The ambient light sensor may adjust brightness of a display panel 8061based on intensity of ambient light. When the terminal 800 moves near anear, the proximity sensor may shut down the display panel 8061 and/orbacklight. As a type of motion sensor, an accelerometer sensor candetect magnitudes of accelerations in all directions (usually threeaxes), can detect a magnitude and a direction of gravity when beingstatic, and can be applied to terminal posture recognition (such asscreen switching between portrait and landscape, related games, andmagnetometer posture calibration), functions related to vibrationrecognition (such as pedometer and tapping), and the like. The sensor805 may also include a fingerprint sensor, a pressure sensor, an irissensor, a molecular sensor, a gyroscope, a barometer, a hygrometer, athermometer, an infrared sensor, and the like. Details are not describedherein.

The display unit 806 is configured to display information input by theuser or information provided for the user. The display unit 806 mayinclude the display panel 8061, and the display panel 8061 may beconfigured in a form of a liquid crystal display (LCD), an organiclight-emitting diode (OLED), or the like.

The user input unit 807 may be configured to receive input digit orcharacter information, and generate key signal input that is related touser setting and function control of the terminal. Optionally, the userinput unit 807 includes a touch panel 8071 and other input devices 8072.The touch panel 8071, also referred to as a touchscreen, may capture atouch operation performed by a user on or near the touch panel (forexample, an operation performed by the user on the touch panel 8071 ornear the touch panel 8071 by using any appropriate object or accessorysuch as a finger or a stylus). The touch panel 8071 may include twoparts: a touch detection apparatus and a touch controller. The touchdetection apparatus detects a touch direction of the user, detects asignal carried by a touch operation, and transmits the signal to thetouch controller. The touch controller receives touch information fromthe touch detection apparatus, converts the touch information into pointcoordinates, transmits the point coordinates to the processor 810, andreceives and executes a command transmitted by the processor 810. Inaddition, the touch panel 8071 may be implemented in a plurality oftypes, for example, as a resistive, capacitive, infrared, or surfaceacoustic wave touch panel. In addition to the touch panel 8071, the userinput unit 807 may further include the other input devices 8072.Optionally, the other input devices 8072 may include but are not limitedto a physical keyboard, a function key (for example, a volume controlkey or a power on/off key), a trackball, a mouse, a joystick, and thelike. Details are not described herein.

Further, the touch panel 8071 may cover the display panel 8061. Afterdetecting a touch operation on or near the touch panel 8071, the touchpanel 8071 transmits the touch operation to the processor 810 fordetermining a type of the touch event. Then the processor 810 providescorresponding visual output on the display panel 8061 based on the typeof the touch event. Although the touch panel 8071 and the display panel8061 are used as two separate components to implement input and outputfunctions of the terminal in FIG. 8, the touch panel 8071 and thedisplay panel 8061 may be integrated to implement the input and outputfunctions of the terminal in some embodiments. This is not specificallylimited herein.

The interface unit 808 is an interface for connecting an externalapparatus to the terminal 800. For example, the external apparatus mayinclude a wired or wireless headphone port, an external power supply (orbattery charger) port, a wired or wireless data port, a memory cardport, a port for connecting an apparatus with an identification module,an audio input/output (I/O) port, a video I/O port, a headset port, orthe like. The interface unit 808 may be configured to receive input (forexample, data information and electric power) from the externalapparatus, and transmit the received input to one or more elements inthe terminal 800; or may be configured to transmit data between theterminal 800 and the external apparatus.

The memory 809 may be configured to store software programs and varioustypes of data. The memory 809 may mainly include a program storage areaand a data storage area. The program storage area may store an operatingsystem, an application program required by at least one function (forexample, an audio play function or an image play function), and thelike. The data storage area may store data (for example, audio data anda phone book) created based on usage of the mobile phone. In addition,the memory 809 may include a high-speed random access memory, and mayfurther include a non-volatile memory such as a disk storage device, aflash memory device, or another volatile solid-state storage device.

The processor 810 is a control center of the terminal, and is connectedto all components of the terminal by using various interfaces and lines.By running or executing a software program and/or a module stored in thememory 809 and invoking data stored in the memory 809, the processor 810executes various functions of the terminal and processes data, so as toperform overall monitoring on the terminal. The processor 810 mayinclude one or more processing units. Optionally, the processor 810 mayintegrate an application processor and a modem processor. Theapplication processor mainly processes an operating system, a userinterface, an application program, and the like. The modem processormainly processes wireless communication. It may be understood that themodem processor may alternatively not be integrated into the processor810.

The terminal 800 may further include a power supply 811 (for example, abattery) that supplies power to each component. Optionally, the powersupply 811 may be logically connected to the processor 810 by using apower management system, so as to implement functions such as chargingmanagement, discharging management, and power consumption management byusing the power management system.

In addition, the terminal 800 includes some functional modules that arenot shown. Details are not described herein.

Optionally, an embodiment of this disclosure further provides aterminal, including a processor 810, a memory 809, and a computerprogram stored in the memory 809 and capable of running on the processor810. When the computer program is executed by the processor 810, theprocesses of the foregoing embodiments of the uplink channelconfiguration method are implemented, with the same technical effectsachieved. To avoid repetition, details are not described herein again.

An embodiment of this disclosure further provides a computer-readablestorage medium, where the computer-readable storage medium stores acomputer program. When the computer program is executed by a processor,the processes of the foregoing embodiments of the information reportingmethod are implemented, with the same technical effects achieved. Toavoid repetition, details are not described herein. For example, thecomputer-readable storage medium is a read-only memory (ROM), a randomaccess memory (RAM), a magnetic disk, or an optical disc.

It should be noted that the terms “include”, “comprise”, and any oftheir variants are intended to cover a non-exclusive inclusion, suchthat a process, a method, an article, or an apparatus that includes alist of elements not only includes those elements but also includesother elements that are not expressly listed, or further includeselements inherent to such process, method, article, or apparatus. Inabsence of more constraints, an element preceded by “includes a . . . ”does not preclude the existence of other identical elements in theprocess, method, article, or apparatus that includes the element.

According to the description of the foregoing implementations, a personskilled in the art can clearly understand that the method in theforegoing embodiments may be implemented by software on a necessaryuniversal hardware platform or by hardware only. In most cases, however,the former is a more preferred implementation. Based on such anunderstanding, the technical solutions of this disclosure essentially ora part thereof that contributes to related technologies may be embodiedin a form of a software product. The computer software product is storedin a storage medium (for example, a ROM/RAM, a magnetic disk, or anoptical disc), and includes several instructions for instructing aterminal (which may be a mobile phone, a computer, a server, an airconditioner, a network device, or the like) to perform the methodsdescribed in the embodiments of this disclosure.

A person of ordinary skill in the art may be aware that the units andalgorithm steps in the examples described with reference to theembodiments disclosed in this specification can be implemented byelectronic hardware or a combination of computer software and electronichardware. Whether the functions are performed by hardware or softwaredepends on particular applications and design constraints of thetechnical solutions. A person skilled in the art may use differentmethods to implement the described functions for each particularapplication, but it should not be considered that the implementationgoes beyond the scope of this disclosure.

It may be clearly understood by a person skilled in the art that, forthe purpose of convenient and brief description, for a detailed workingprocess of the foregoing system, apparatus, and unit, reference may bemade to a corresponding process in the foregoing method embodiments, anddetails are not described herein again.

In the embodiments provided in this application, it should be understoodthat the disclosed apparatus and method may be implemented in othermanners. For example, the described apparatus embodiment is merely anexample. For example, the unit division is merely logical functiondivision and may be other division in actual implementation. Forexample, a plurality of units or components may be combined orintegrated into another system, or some features may be ignored or maynot be performed. In addition, the displayed or discussed mutualcouplings or direct couplings or communication connections may beindirect couplings or communication connections via some interfaces,apparatuses or units, and may be implemented in electrical, mechanical,or other forms.

The units described as separate parts may or may not be physicallyseparate. Parts displayed as units may or may not be physical units, andmay be located in one position or distributed on a plurality of networkelements. Some or all of the units may be selected based on actualrequirements to achieve the objectives of the solutions of theembodiments.

In addition, functional units in the embodiments of this disclosure maybe integrated into one processing unit, or each of the units may existalone physically, or two or more units are integrated into one unit.

When the functions are implemented in a form of a software functionalunit and sold or used as an independent product, the functions may bestored in a computer-readable storage medium. Based on such anunderstanding, the technical solutions of this disclosure essentially,or the part contributing to related technologies, or some of thetechnical solutions may be embodied in a form of a software product. Thecomputer software product is stored in a storage medium, and includesinstructions for enabling a computer device (which may be a personalcomputer, a server, a network device, or the like) to perform all orsome of the steps of the methods described in the embodiments of thisdisclosure. The foregoing storage medium includes: any medium that canstore program code, such as a USB flash drive, a removable hard disk, aROM, a RAM, a magnetic disk, or an optical disc.

A person of ordinary skill in the art may understand that all or some ofthe processes of the methods in the embodiments may be implemented by acomputer program controlling relevant hardware. The program may bestored in a computer-readable storage medium. When the program runs, theprocesses of the methods in the embodiments are performed. The storagemedium may be a magnetic disk, an optical disc, a ROM, a RAM, or thelike.

It can be understood that the embodiments described in the embodimentsof this disclosure may be implemented by hardware, software, firmware,middleware, microcode, or a combination thereof. For hardwareimplementation, the processing unit may be implemented in one or moreapplication-specific integrated circuits (ASIC), digital signalprocessors (DSP), digital signal processing devices (DSPD), programmablelogic devices (PLD), field-programmable gate arrays (FPGA),general-purpose processors, controllers, microcontrollers,microprocessors, and other electronic units for performing the functionsdescribed in this disclosure, or a combination thereof.

For software implementation, the techniques described in the embodimentsof this disclosure may be implemented by modules (for example,procedures or functions) that perform the functions described in theembodiments of this disclosure. Software code may be stored in thememory and executed by the processor. The memory may be implementedinside the processor or outside the processor.

The foregoing describes the embodiments of this disclosure withreference to the accompanying drawings. However, this disclosure is notlimited to the foregoing specific implementations. The foregoingspecific implementations are merely illustrative rather thanrestrictive. In light of this disclosure, a person of ordinary skill inthe art may develop many other forms without departing from principlesof this disclosure and the protection scope of the claims, and all suchforms shall fall within the protection scope of this disclosure.

What is claimed is:
 1. An uplink channel transmission method,comprising: performing, by a terminal, transmission of an uplink channelaccording to an uplink channel related transmission parameter, whereinthe transmission parameter corresponds to N uplink channels and/or atleast two target transmissions of a target uplink channel, and N is aninteger greater than
 1. 2. The method according to claim 1, wherein thetransmission parameter comprises a predefined number of layers of anuplink channel, and the number of layers is
 1. 3. The method accordingto claim 1, wherein in a case that the transmission parametercorresponds to at least two target transmissions of a target uplinkchannel, the transmission parameter comprises: a predefined firstassociation between the number of target transmissions of a targetuplink channel and precoding information, and/or a predefined secondassociation between the number of target transmissions of a targetuplink channel and spatial relation information.
 4. The method accordingto claim 1, wherein before the performing transmission of an uplinkchannel according to an uplink channel related transmission parameter,the method further comprises: receiving, by the terminal, indicationinformation sent by a network-side device, wherein the indicationinformation is used to indicate the uplink channel related transmissionparameter.
 5. The method according to claim 4, wherein in a case thatthe transmission parameter corresponds to N uplink channels, the Nuplink channels correspond to M transmission and reception points(TRPs), and M is an integer greater than 1; or in a case that thetransmission parameter corresponds to at least two target transmissionsof a target uplink channel, the target transmission is: a repeatedtransmission, a frequency hopping transmission, or a fractionaltransmission.
 6. The method according to claim 5, wherein the TRP isdefined by at least one of the following: a control resource set or acontrol resource set group; an explicitly defined TRP; a transmissionconfiguration indication state, a transmission configuration indicationstate list or a transmission configuration indication state pool; quasico-location (QCL) information or QCL group information; spatial relationinformation or spatial relation group information; a physical downlinkcontrol channel (PDCCH) scrambling identifier or a PDCCH scramblingidentifier group; a physical downlink shared channel (PDSCH) scramblingidentifier or a PDSCH scrambling identifier group; a PDCCH-Configinformation element; and a PDSCH-Config information element.
 7. Themethod according to claim 4, wherein in a case that the uplink channelis a physical uplink shared channel (PUSCH), the indication informationis transmitted through downlink control information (DCI).
 8. The methodaccording to claim 7, wherein the DCI comprises a first signaling field,and the first signaling field is used to indicate an uplink transmissionscheme for the PUSCH. wherein the uplink transmission scheme comprisesat least one of the following: diversity based PUSCH, codebook basedPUSCH, and non-codebook based PUSCH; or, wherein the DCI comprises asecond signaling field, and the second signaling field is used toindicate precoding information of the PUSCH.
 9. The method according toclaim 8, wherein the first signaling field is a precoding informationand number of layers signaling field, and the precoding information andnumber of layers signaling field uses a first codepoint to indicate theuplink transmission scheme for the PUSCH.
 10. The method according toclaim 9, wherein in a case that the first codepoint is a reservedcodepoint, a new codepoint, a codepoint for which a transmittedprecoding matrix indicator (TPMI) is a special value, or a codepoint forwhich the number of layers is a special value, the uplink transmissionscheme for the PUSCH indicated by the first codepoint is: diversitybased PUSCH or non-codebook based PUSCH.
 11. The method according toclaim 8, wherein in a case that the precoding information corresponds toN codebook based PUSCHs, the second signaling field is a precodinginformation and number of layers signaling field; and the DCI uses oneprecoding information and number of layers signaling field to indicateprecoding information of the N codebook based PUSCHs; or the DCI uses Nprecoding information and number of layers signaling fields to indicateprecoding information of the N codebook based PUSCHs; or, wherein in acase that the precoding information corresponds to a diversity basedPUSCH, the second signaling field is a precoding information and numberof layers signaling field, and the precoding information and number oflayers signaling field uses a reserved codepoint to indicate precodinginformation of the diversity based PUSCH; or, wherein in a case that theprecoding information corresponds to at least two target transmissionsof a target PUSCH, the DCI further comprises a third signaling field,and the third signaling field is used to indicate the number of targettransmissions of the target PUSCH; or, wherein in a case that theprecoding information corresponds to at least two target transmissionsof a codebook based target PUSCH, the second signaling field is aprecoding information and number of layers signaling field; or in a casethat the precoding information corresponds to at least two targettransmissions of a non-codebook based target PUSCH, the second signalingfield is a sounding reference signal resource indicator (SRI) signalingfield.
 12. The method according to claim 4, wherein the uplink channelis a physical uplink control channel (PUCCH), and the indicationinformation is transmitted through at least one of radio resourcecontrol (RRC) layer information, medium access control (MAC) layerinformation, and physical layer control information, wherein the RRClayer information comprises RRC signaling; the MAC layer informationcomprises a MAC control element (CE); and the physical layer controlinformation comprises DCI.
 13. The method according to claim 12, whereinin a case that the transmission parameter corresponds to N PUCCHs, theindication information comprises a first sub indication information, thefirst sub indication information is used to indicate Q pieces of spatialrelation information, and Q is an integer greater than or equal to N.14. The method according to claim 13, wherein the first sub indicationinformation comprises G groups of spatial relation information, and thespatial relation information of the G groups of spatial relationinformation constitutes the Q pieces of spatial relation information,wherein G is equal to 1; or, G is equal to N; or, a value of G is equalto the number of groups that the N PUCCHs are divided to; and/or,wherein in a case that Q is greater than N, the indication informationfurther comprises second sub indication information, and the second subindication information is used to indicate spatial relation informationof each PUCCH of the N PUCCHs.
 15. The method according to claim 4,wherein in a case that the transmission parameter corresponds to atleast two target transmissions of a target uplink channel, theindication information comprises third sub indication information, andthe third sub indication information is used to indicate spatialrelation information of at least two target transmissions of the targetuplink channel, wherein the number of pieces of spatial relationinformation is equal to or not equal to the number of targettransmissions of the target uplink channel.
 16. The method according toclaim 15, wherein in a case that the number of pieces of spatialrelation information is less than the number of target transmissions ofthe target uplink channel, the performing transmission of an uplinkchannel according to an uplink channel related transmission parametercomprises: performing J target transmissions of at least two targettransmissions of the target uplink channel by reusing first spatialrelation information in the spatial relation information; or, wherein ina case that the number of pieces of spatial relation information isgreater than the number of target transmissions of the target uplinkchannel, the performing transmission of an uplink channel according toan uplink channel related transmission parameter comprises: performingat least two target transmissions of the target uplink channel by usingsecond spatial relation information in the spatial relation information,the number of pieces of second spatial relation information being equalto the number of target transmissions of the target uplink channel. 17.The method according to claim 16, wherein the J target transmissions areany one of the following transmissions: an odd number of targettransmissions of at least two target transmissions of the target uplinkchannel; an even number of target transmissions of at least two targettransmissions of the target uplink channel; first J target transmissionsof at least two target transmissions of the target uplink channel; andlast J target transmissions of at least two target transmissions of thetarget uplink channel.
 18. The method according to claim 16, wherein thesecond spatial relation information is: first p pieces of spatialrelation information in the spatial relation information that isarranged in order; or the second spatial relation information is: ppieces of spatial relation information with the smallest spatialdistances to target spatial relation information in the spatial relationinformation; wherein the target spatial relation information is spatialrelation information used in historical transmission of an uplinkchannel corresponding to at least two target transmissions of the targetuplink channel; and P is the number of target transmissions of thetarget uplink channel.
 19. A network-side device, comprising aprocessor, a memory, and a computer program stored in the memory andcapable of running on the processor, wherein when the computer programis executed by the processor, an uplink channel configuration method isimplemented, and the method comprises: sending indication information toa terminal, wherein the indication information is used to indicate anuplink channel related transmission parameter, the transmissionparameter corresponds to N uplink channels and/or at least two targettransmissions of a target uplink channel, and N is an integer greaterthan
 1. 20. A terminal, comprising a processor, a memory, and a computerprogram stored in the memory and capable of running on the processor,wherein when the computer program is executed by the processor, anuplink channel transmission method is implemented, and the methodcomprises: performing transmission of an uplink channel according to anuplink channel related transmission parameter, wherein the transmissionparameter corresponds to N uplink channels and/or at least two targettransmissions of a target uplink channel, and N is an integer greaterthan 1.